| ja_voice = {{voice actors|jpja|Shogo Yano}}

===Appearance===Sylvio has is a handsome young boy with short light brown and blonde hair, styled in layers, and grayish blue eyes. He generally wears the [[Paradise Prep School]] uniform, with his [[Leo Institute of Dueling|LID]] badge pinned to the collar. He briefly wears an outfit in homage to ''Mabuta no Haha'' before his Duel with [[Yuya Sakaki|Yuya]] in the [[Maiami Arc League Championship]]; a teal cape with thin white stripes, a wide-brimmed straw hat, a grey tunic over ash-white leggings, and black elbow-length arm warmers and socks that he wears sandals over. Later, Sylvio wears a [[Turbo Duel]]ing outfit during the [[Friendship Cup]], a yellow jumpsuit with a grey chest portion, white pads, and a teal lining, in addition to a blue helmet with a green visor.

Immediately after Pendulum Summoning for the first time, he became fascinated by the newly discovered Summon type. He quickly called it "the best" and went great distances to obtain [[Pendulum Monster]]s. At one point he even claimed he was the first Duelist to Pendulum Summon<ref name="ep54">{{episode|Yu-Gi-Oh! ARC-V|54|ref}}</ref> and bragged about Pendulum to [[Security]] while in the [[Synchro Dimension]].<ref name="ep56">{{episode|Yu-Gi-Oh! ARC-V|56|ref}}</ref>.

In the Japanese version, Sylvio tends to add a large number of English phrases to his speech and speaks rather brashly and rudely, sometimes even addressing himself as "ore-sama" which is a very boastful and egotistical personal pronoun in Japanese. In the English dub, his occasional spouts of English are changed to French and his overall manner is far more posh and polite but still arrogant. In that version, Sylvio has a slight British accent.

[[File:Silvio stealing Yuya's Pendulum Monsters.png|right|thumb|250px|Sylvio steals [[Yuya Sakaki|Yuya]]'s [[Pendulum Monster]]s.]] After class one day, he approached Yuya and his friends, throwing three sucker-tipped darts at Yuya before introducing himself, stating that he was a fan of Yuya and his [[Pendulum Summon]]ing. Yuya was going to show his friends a Pendulum Summon at his own [[You Show Duel School|Duel School]], but Sylvio offered the use of the Center Duel Field at [[Leo Institute of Dueling|LID]]. [[Zuzu Boyle|Zuzu]] wasn't happy about it, but Yuya's other friends all agreed, and Sylvio showed them around the school before he took them to the Duel Field. There Yuya and his friends were met by Sylvio's crew of friends: [[Ootomo]], [[Yamabe]], and [[Kakimoto]]. Sylvio asked to show his crew Yuya's Pendulum Monsters, and Yuya reluctantly showed him his "[[Stargazer Magician (anime)|Stargazer Magician]]" and "[[Timegazer Magician (anime)|Timegazer Magician]]." Sylvio promptly swiped them and showed them to his crew, before announcing his intention to keep them. He offered Yuya the chance to Duel to get them back, much to the anger of [[Claude]], who was monitoring Sylvio for Declan. Declan allowed Sylvio to Duel Yuya. Sylvio tossed Yuya some of his [[common]] cards to replace his Magicians, calling them trash cards. To ensure that Yuya would Duel, Sylvio had Yuya's friends placed on top of one of the towers in "[[Prison Tower of Darkville]]," endangering them with the prospect of their perch being damaged by [[Action Card|Action]] [[Trap Card]]s. On the first [[turn]], Sylvio drew "Timegazer Magician," but was instructed by Declan to keep it in his hand instead of playing it right away. Instead, he Summoned "[[Lightning Hoverboard]]" and pursued Yuya, destroying his "[[Performapal Whip Snake (anime)|Performapal Whip Snake]]" after it was weakened by Action Trap Cards. Yuya continued to play defensively, but to no avail; on Sylvio's next turn he drew a card that allowed him to [[add a card|add]] "Stargazer Magician" to his hand and he proceeded to Pendulum Summon his "[[Dart]]" monsters with Declan's assistance. Sylvio was amazed at the Summon, declaring himself a chosen one.<ref name="ep3" />

[[File:Arc V Silvio and Declan.png|thumb|left|250px|Sylvio Pendulum Summons with help from [[Declan Akaba|Declan]].]]

After his defeat, he acquired new cards that he tested out against one of his crew. They praised him, calling the cards strong, but Sylvio corrected them, claiming that it was him that was strong and stating that he had all the qualities of a "Perfect Duelist." After he used a few expressions similar to those that Yuya had used his friends wondered if Yuya had rubbed off on Sylvio, but he denied it and vowed he would crush Yuya. He was later seen hanging out with his crew in an abandoned warehouse, waiting for his friends to bring him his favorite food, and chastised his friends for being late.

[[File:Arc V Silvio choking on his food.png|thumb|right|250px|Sylvio chokes on his foodwhen Zuzu arrives to stop him.]]

[[File:Arc V Silvio's jacket pierced.png|thumb|left|250px|Sylvio's jacket pierced by "[[Phantom Knights' Spear (anime)|Phantom Knights' Spear]]".]]

[[File:Arc V Silvio dressed in Mabuta no Haha.png|thumb|right|250px|Sylvio cosplays as "Mabuta no Haha" prior to his match with Yuya."]]At the Championship, he accompanied the Course representatives and [[Shay Obsidian|Shay]]. His first Duel was to be against Yuya the next day.<ref name="ep27">{{episode|Yu-Gi-Oh! ARC-V|27|ref}}</ref> Sylvio entered the arena the next day dressed in homage to ''Mabuta no Haha'', proclaiming himself the world's greatest [[Duelist]], and calling himself "Neo New Sawatari." Sylvio claimed that [[Pendulum Summon]]ing would be Yuya's downfall, and pointed out his (unfounded and quickly disproven) grudges against Yuya. They began their Duel, with Sylvio unveiling his new "[[Yosenju]]" [[Monster Card|monsters]]. Yuya Pendulum Summoned next turn and fought back, but Sylvio used his "Yosenju" cards to deny him [[Action Card]]s and add "Yosenju" Pendulum Monsters from his Deck to his hand and Pendulum Summoned "[[Mayosenju Daibak (anime)|Mayosenju Daibak]]." He then [[activate]]d his "[[Dizzying Winds of Yosen Village (anime)|Dizzying Winds of Yosen Village]]" to [[send]] the cards bounced to Yuya's hand back to his Deck instead, and cleared his [[field]] when the self-returning effects of his "Yosenju" monsters triggered his "[[Yosen Whirlwind (anime)|Yosen Whirlwind]]", returning the cards to Yuya's hand and thus to his Deck. Despite his pinch, Yuya simply laughed and [[Set]] his remaining cards, and then turned to find more Action Cards.<ref name="ep31">{{episode|Yu-Gi-Oh! ARC-V|31|ref}}</ref>

[[File:Arc V Silvio and Yosenju's brothers.png|thumb|left|250px|Sylvio and his "[[Yosenju]]" [[Monster Card|monsters]].]]

[[File:Yuya and Sawatari.png|thumb|right|250px|Sylvio graciously accepting his loss to [[Yuya Sakaki|Yuya]].]]

[[File:Silvio electrocuted.png|thumb|left|250px|Sylvio electrocuted upon paying the 2000 [[LP]] penalty.]]During the [[Battle Royal]], after the video feed for all of the areas were cut, Sylvio took advantage of his father's influence to barge into Declan's control room and ask what was going on because he wanted to see how far in the tournament Yuya would get. Declan allowed him to stay and offered him a chance to take place in a revival match.<ref name="ep47">{{episode|Yu-Gi-Oh! ARC-V|47|ref}}</ref> Declan explained the situation regarding [[Celina]], [[Shay Obsidian|Shay]] and the invading [[Obelisk Force]] to Sylvio and sent him to assist Celina, Shay, and [[Moon Shadow]]. He arrived in time to use an Action Card to save Moon Shadow. He explained why he was there, boasting that Declan had told him everything, but was then shocked by the intrusion penalty of 2000 LP--a LP—a detail that Declan had ''not'' warned him about. Despite this, he claimed that he'd show them why he was "LID's strongest."<ref name="ep48">{{episode|Yu-Gi-Oh! ARC-V|48|ref}}</ref>

[[File:Arc V Silvio using his new Pendulum Cards.png|thumb|250px|right|Sylvio using his new "[[Abyss Actor]]" [[Pendulum Monster]]s.]]

When [[Yuya Sakaki|Yuya]] asked [[Declan Akaba|Declan]] why they'd been fighting as opposed to the Youth and Pro teams, Sylvio explained that the Youth team were wiped out save for [[Kev Ravenwood|one]], which was why he'd been sent to help. When [[Celina]] revealed herself to be from [[Duel Academy (ARC-V)|Duel Academy]], Sylvio believed her to be a spy and questioned her until [[Moon Shadow]] stepped in to fend him off. Declan then reassured them that Celina was no spy. During Yuya's Duel with Declan, Sylvio filled [[Dennis MacfieldMcField|Dennis]] in on Declan's Dueling and he expressed sympathy for Yuya's loss of [[Zuzu Boyle|Zuzu]].<ref name="ep50">{{episode|Yu-Gi-Oh! ARC-V|50|ref}}</ref>

[[File:Arc V Silvio arrested.png|thumb|left|250px|Sylvio gets arrested by [[Sector Security (ARC-V)|Sector Security]].]]He arrived in the Synchro Dimension with Yuya, Celina, and [[Riley Akaba]], and the group were immediately accosted by [[Sector Security (ARC-V)|Sector Security]], claiming that they were wanted for trespassing in [[Topsiders]]-exclusive areas. Unaware as to what the Sector Security members were referring to and incensed by their rudeness, Sylvio rashly challenged them to a Duel despite Yuya's protests.<ref name="ep55">{{episode|Yu-Gi-Oh! ARC-V|55|ref}}</ref> He was swiftly taken out with a [[One Turn Kill]] and apprehended, and when Yuya Dueled another Sector Security officer, he bragged about [[Action Card]]s and [[Pendulum Summon]]ing, inadvertently alerting the officers to the function of Action Cards. Although Celina defeated her opponent, Yuya was put in a tough spot and more Sector Security officers arrived. Sylvio managed to get free and face-off against them, but fortunately they were saved by [[Crow Hogan (ARC-V)|a Synchro Dimension native]] and his gang.<ref name="ep56">{{episode|Yu-Gi-Oh! ARC-V|56|ref}}</ref>

[[File:Arc V Silvio, Selena and Yuya.png|thumb|250px|right|Sylvio, Yuya, [[Celina]], and [[Riley Akaba|Riley]] are invited by [[Crow Hogan (ARC-V)|Crow]] to stay at his place.]]The Synchro user, [[Crow Hogan (ARC-V)|Crow]], invited them to stay at his place until events calmed down, and Sylvio introduced himself as an undefeated Duelist with Yuya as his disciple. Sylvio revealed through his boasts that they were from a different dimension to a confused Crow. [[Frank (ARC-V)|Frank]] and [[Tarren]], two of the orphans that Crow looked after, later returned with stolen food and revealed that they'd seen Yuya and Celina at a café, who Yuya and Celina deduced to be Zuzu and someone named [[Yugo]]. Crow went out to look for them.<ref name="ep57">{{episode|Yu-Gi-Oh! ARC-V|57|ref}}</ref>

[[File:Arc V Silvio and the cook.png|thumb|left|250px|Sylvio tries to convince the cook to give him more food.]]

[[File:Everyone taken away.png|thumb|right|250px|Sylvio and the others are taken away to compete in the [[Friendship Cup]].]]He led them to the roof, where they were cornered by the [[Stomptroopers]]. Sylvio suggested bribing them with rare cards, but Chojiro explained that this wouldn't work on the Stomptroopers Dueling them one-on-three proved difficult for Sylvio, and he fled with Yuya and Chojiro. Trapped on top of a tall tower, Sylvio refused to jump until Chojiro grabbed him and forced him to jump, leaving Yuya to save them. The group were eventually rescued by Gong and Shay, and they linked up with the other escaped Lancers and Commons to swim from the Facility. Unfortunately, [[Jean-Michel Roget]], the Director of Sector Security, had anticipated them and captured Damon's contact, [[Tony Simmons]]. Envoys of the [[High Council]] stepped in to bring the Lancers and the Commons to them, where Declan revealed himself and that he had informed the Council of the Interdimensional War. The Lancers were entered into the Friendship Cup and Yuya was chosen to Duel Jack Atlas in an exhibition match before the start of the tournament. Before being separated from Yuya, Sylvio urged him to show his strength to the Synchro Dimension.<ref name="ep63">{{episode|Yu-Gi-Oh! ARC-V|63|ref}}</ref>

Sylvio watched the Duels on the first day of the tournament, furious that he wasn't being picked but somewhat pacified by the exquisite dinner that he received. He was angry that he still wasn't Dueling on the second day when Yuya Dueled [[Duel Chaser Officer 227]], but was concerned when Yuya was close to losing. He was also shocked to learn from Yuya that the losers in the tournament would be sent to the [[Underground Labor Facility]]. <ref name="ep71">{{episode|Yu-Gi-Oh! ARC-V|71|ref}}</ref> When his name was announced for the Duel against [[Yugo]], he was initially angry, not realizing that he'd finally been picked to Duel.

[[File:SilvioVsYugo.png|thumb|left|250px|Sylvio vs. [[Yugo]]]]

[[File:YGO-ARC-V-Ep-72-Img-0005.png|thumb|250px|Sylvio uses his "[[Abyss Script - Opening Ceremony (anime)|Abyss Script - Opening Ceremony]]" to increase entertains the crowd during his [[LP]].Duel with Yugo]]

[[File:SilvioSeesYugoasYuya.png|thumb|250px|left|Sylvio notes how much Yugo resembles Yuya after their Duel.]]

[[File:YGO-ARC-V-Ep-73-Img-0012.png|250px|thumb|Sylvio vows to win every Duel in the [[Underground Labor Facility|Underground]].]]Sylvio was taken to the Underground Labor Facility, where the staff that escorted him explained the rules of the place. Upon arriving to meet Gong and Chojiro and learning from [[Lucas Swank]] that one had to win consecutive Duels in order to leave, Sylvio immediately challenged the group to a Duel.<ref name="ep73">{{episode|Yu-Gi-Oh! ARC-V|73|ref}}</ref> However, there is no indication of any duels actually taking place.

[[File:Sawatari_and_Shun_91Sawatari and Shun 91.jpg|thumb|left|250px|Sylvio and [[Shay Obsidian|Shay]] against Underground guards.]]Despite his efforts, Sylvio was unable to leave the facility. He was doing cleanup work with Gong until and noticed [[Shay Obsidian|Shay]] starting a riot. [[Crow Hogan (ARC-V)|Crow]] came down arrived and explained that Duel Academy had invaded New Domino City. Sylvio, Gong, and Shay then got their [[Duel Disk]]s from Moon Shadow, who also informed them that Riley was Dueling alone to protect Celina. Sylvio and Shay decided to go and help while Gong stayed to protect Zuzu from Security. Their escape route was blocked off by an electric gate, forcing Sylvio and Shay to Duel against five guards, who were all defeated by Shay's "[[Raidraptor - Blaze Falcon (anime)|Raidraptor - Blaze Falcon]]". Lucas arrived on a mining cart to capture them but crashed into the gate. The Stomptroopers arrived and surrounded them but were stopped when Shinji activated the conveyer conveyor belt. Lucas returned to Duel them but was stopped by [[Duel Chaser Officer 227]] and his fellow former officers, allowing Shay, Sylvio, and Moon Shadow to escape.<ref name="ep90">{{episode|Yu-Gi-Oh! ARC-V|90|ref}}</ref>

[[File:SylvioStopsSora.png|thumb|250px|Sylvio still considers Sora an enemy.]]

[[file:GongSylvioBlockCommons.png|thumb|250px|left|Sylvio and Gong block the rioting Commons' path.]]After watching the [[Commons (ARC-V)|Commons]] and Sector Security's battle escalate, Sylvio and Chojiro argue about how to get through. Before they come to a decision, Riley's traumatic memories again causes him to join the battle before being calmed by Shay. When they arrived at the Capital Building, the front entrance was blocked by Sector Security. Before they could come up with a plan, Declan arrived and destroyed their Trap Cards with "[[D/D/D Duo-Dawn King Kali Yuga (anime)|D/D/D Duo-Dawn King Kali Yuga]]"'s effect. After defeating Sector Security, they went get Yuya on Shay's "[[Raidraptor]]s", where they found Yuya, Gong, [[Sam (ARC-V)|Sam]], Frank, [[Amanda]] and Tarren on the bridge to the [[Duel Palace]] about to be attacked by Commons who had mistaken them for retreating Topsiders. Once he was in the stadium, Yuya challenged Jack to a Duel.<ref name="ep95">{{episode|Yu-Gi-Oh! ARC-V|95|ref}}</ref> Sylvio helped the Lancers and Chojiro in fending off Sector Security when they stormed the Duel Palace, defeating a [[Jutte Lord]] with "Abyss Actor - Superstar".<ref name="ep96">{{episode|Yu-Gi-Oh! ARC-V|96|ref}}</ref> He later went out with the Lancers to quell the Commons' riots. He and Gong block blocked off a mob of Commons from continuing their fight against Sector Security with "[[Superheavy Samurai Big Benkei (anime)|Big Benkei]]", "[[Superheavy Samurai Trumpeter (anime)|Trumpeter]]", "[[Abyss Actor - Funky Comedian (anime)|Abyss Actor - Funky Comedian]]", "[[Abyss Actor - Pretty Heroine (anime)|Abyss Actor - Pretty Heroine]]" and "[[Abyss Actor - Sassy Rookie (anime)|Abyss Actor - Sassy Rookie]]".<ref name="ep97">{{episode|Yu-Gi-Oh! ARC-V|97|ref}}</ref>

[[File:LancersLookOverHeartland.png|thumb|250px|Sylvio look over Heartland.]]He and Gong arrived at the ruins of Roget's office and they wondered whether Sora had been buried in the rubble, but Shay arrived and reassured them that Sora would not let that stop themhim. They found Yuya, Crow and [[Jack Atlas (ARC-V)|Jack Atlas]] with Riley and Moon Shadow outside a room where Declan was Dueling Roger. Sora managed to let the Lancers in, where they learned that Roget was using holographic clones to repeatedly Duel Declan. When Declan managed to thwart Roget's loop of Duels, Roger revealed that the Professor, the leader of Duel Academy, was none other than [[Leo Akaba]], Declan's father and the founder of LID and the Leo Corporation. Declan managed to throw off the accusations against him and Roget retreated. Sylvio witnessed Yuya and Zuzu's reunion and Roget's attempts to kill them all by dropping the City into the void between dimensions. After Roget and Zuzu were both sucked away, Sylvio came to Gong and Shay's aid when Yuya was beginning to get sucked in too, but their efforts were in vain and all four Lancers were sucked into the portal. They came to in a ruined city, and Sylvio questioned whether New Domino had been destroyed. Shay informed them that they were in fact in his home: [[Heartland City (ARC-V)|Heartland City]] in the [[Xyz Dimension]].<ref name="ep99">{{episode|Yu-Gi-Oh! ARC-V|99|ref}}</ref>

[[Shay Obsidian|Shay]] left Sylvio, [[Gong Strong|Gong]] and [[Yuya Sakaki|Yuya]] to go and seek out the base of [[the Resistance]], but he did not return, so the three [[Lancers]] wandered the ruins of Heartland. Sylvio was starving and hallucinated an oasis, but when admonished for it by Gong, legitimately spotted a woman gathering water and food. The woman fled upon seeing their [[Duel Disk]]s, so the Lancers attempted to return her supplies, though Sylvio had to be persuaded not to have some. They witnessed a man being [[Human Sealing Technology|sealed]] into a card by three [[Duel Academy (ARC-V)|Duel Academy]] students and found the woman's house, eventually managing to convince them to take their food back. Sylvio was extremely tempted by the food and he argued with Gong over eating it, until Gong's growling stomach and the generosity of the woman's sons allowed them to have some. The woman also explained that the Resistance had been wiped out for some time. The three Duel Academy students returned, but they were stayed from sealing the group when they noticed that the Lancers were Duelists. Yuya, Gong and Sylvio defeated them all using Yuya's "[[Smile World (anime)|Smile World]]" and a [[Pendulum Summon]], also succeeding in entertaining the family. Sylvio tried to use the Duel Academy Duelists' Duel Disk to seal them into cards, but Yuya stopped him. Sylvio protested that they couldn't just let the students flee and was proven right when the students did flee, but he and the Lancers saw the students sealed into cards by [[Kite Tenjo (ARC-V)|Kite Tenjoa Duelist]] with a [[Galaxy-Eyes Cipher Dragon (anime)|dragon]] who then challenged the Lancers to a Duel.<ref name="ep100">{{episode|Yu-Gi-Oh! ARC-V|100|ref}}</ref> [[File:SylvioYuyaPose.png|thumb|left|250px|Sylvio accepting Kite's challenge.]]Sylvio accepted his challenge, and Gong joined as well in order to prove that they were not enemies. The Duelist, who Yuya identified as Kite Tenjo, concluded that they were invaders after seeing Sylvio use an Action Card. Sylvio tried to prevent Kite from [[Xyz Summon]]ing his dragon, but Kite managed to counter his attempts and call out "[[Galaxy-Eyes Cipher Dragon (anime)|Galaxy-Eyes Cipher Dragon]]", defeating Sylvio and Gong.<ref name="ep101">{{episode|Yu-Gi-Oh! ARC-V|101|ref}}</ref> Sylvio and Gong watched Yuya Duel Kite, who was able to counter some of Yuya's tactics from learning through the Duel with Sylvio. Kite learned that Action Cards can be used for defense, and Sylvio tried to explain how they could be used before being silenced. Yuya Xyz Summoned "[[Dark Rebellion Xyz Dragon (anime)|Dark Rebellion Xyz Dragon]]", [[Shay Obsidian|Shay]] and [[Alan|two]] [[Saya Sasayama|other]] Resistance members interrupted the Duel and Shay clarified that Yuya, Sylvio and Gong were his comrades. While Kite was still in doubt, Shay assured Kite that Yuya wanted to stop Duel Academy as much as they did, asking him to trust Yuya like he did. Upon hearing Yuya's last name and the female Resistance member's plea to return, Kite refused before taking his leave of them.<ref name="ep102">{{episode|Yu-Gi-Oh! ARC-V|102|ref}}</ref>

[[File:SylvioYuyaPoseAlanWithLancers.png|thumb|left250px|Sylvio accepting Kiteat the Resistance's challengenew hideout.]]Sylvio accepted his challenge and Gong joined as well in order went to prove they were not enemies. But Kite concluded that they were invaders after seeing them use unknown techniques. Sylvio tried to prevent Kite from Summoning his dragon by using different methods but Kite countered everyone of them. He and Gong were then defeated by Kitethe Resistance's "[[GalaxyDuel Sanctuary (ARC-Eyes Cipher Dragon (animeV)|Galaxy-Eyes Cipher Dragonnew hideout]]"where he was scolded by Gong for being rude to Alan.<ref name="ep101">{{episode|Yu-Gi-Oh! ARC-V|101|ref}}</ref> Right after being defeated, Sylvio and Gong watched Upon witnessing Alan mistaking Yuya Dueled Kitefor Yuto, he asked who Yuto was able to counter some of Yuya's tactics from learning through (as he had never learned his first Duelname when they Dueled). When Kite learned Gong explained to Sylvio that Action Cards can be used for defense, Sylvio tried to explain how it can used for different ways before being silenced. When Yuya Xyz Summoned "Yuto was someone [[Odd-Eyes Rebellion Dragon (anime)Zuzu Boyle|Odd-Eyes Rebellion DragonZuzu]]", Sylvio wonder if had met a few times who looked like Yuya could win after Kite was able to destroy it. When Yuya Xyz Summoned "[[Dark Rebellion Xyz Dragon (anime)|Dark Rebellion Xyz Dragon]]", [[Shay Obsidian|Shay]] and [[Allen Kozuki|two]] [[Sayaka Sasayama|other]] Resistance members interrupted Sylvio learned of the second massive attack that Duel Academy had launched that had wiped out most of the Heartland civilians and cleared up the misunderstanding as Shay revealed that Resistance members. He, Yuya, Sylvio and Gong were his comrades. While Kite was still in doubt, Shay assured Kite that Yuya wanted surprised and shocked to hear of [[Yusho Sakaki]]'s visit to stop Duel Academy the dimension as much well as they did, asking him to trust Yuya like he did. Upon hearing Yuya's last name and the female Resistance member's plea to return, Kite refused before taking his leave of themfact that Yusho was well-known in Heartland.<ref name="ep102ep103">{{episode|Yu-Gi-Oh! ARC-V|102103|ref}}</ref>

[[File:AllenWithLancersShay later met up with Kite again, and as they prepared to Duel, Sylvio and Gong arrived to stop them, but were unable to do so.png|thumb|During the Duel, Sylvio at the Resistance's new hideoutexplained Action Cards to Alan and Saya.]]Sylvio went Yuya arrived, and also failed to stop the Resistance's [[Duel Sanctuary (ARC-V)|new hideout]] where he was scolded by Gong for being rude , but Shay began to Allen. Upon witnessing Allen mistaking Yuya for Yutouse Action Cards, he asked who Yuto was because when calling them the two power of them dueledhis comrades, Yuto did not give his name so Sylvio had no reason to make the connectionLancers. He learned from Sylvio and Gong explained the effects of each card he used, and they realized in shock that Yuto was someone Zuzu Shay's final card had met a few times before and looks just like Yuya. He heard Shay explaining what happened at been "[[Standard DimensionTake Flight (Action Card)|StandardTake Flight]] to Allen and Sayaka", as well as his initial mistrust of Yuya before which he eventually understood Yutocouldn's decision to give t use at the time. They were surprised when Yuya "Dark Rebellion". Sylvio made a grave face once he found out how Duel Academy launched a second massive attack revealed that wiped out most of the civilians and the Resistance membersYuto was residing inside him. He, along with Yuya Kite defeated Shay and Gongprepared to seal him in a card, were surprised and shocked but Saya begged him not to hear of before revealing that she had witnessed [[Yusho Sakaki|YushoLulu Obsidian]]'s visit to the dimension as well as the fact that Yusho was well-known in Heartlandkidnapping. This revelation shocked Sylvio, and Kite reluctantly complied before leaving again.<ref name="ep103ep105">{{episode|Yu-Gi-Oh! ARC-V|103105|ref}}</ref>

When Shay [[File:Gong and Sylvio Find Alan and Saya.png|thumb|250px|left|Sylvio and Gong find an injured Alan and Saya.]]Saya later ran off to go find Kite were about to Duel, and Sylvio looked around the hideout for her, but he was unable to find her and returned to the hideout to inform Gong . Shay arrived and decided to stop them but split the Lancers into two groups to no availfind Saya. While watching they made comments about how unlikely it was for "[[Raidraptor - Rise Falcon (anime)|Raidraptor - Rise Falcon]]" to stand a chance against "Galaxy-Eyes Cipher Dragon" even with [[Raptor's Intercept Form]]. were searching through Heartland, Gong and Sylvio tells Allen heard an eplosion, and Sayaka what [[Action Card]]s are when they see Shay use onefound the unconscious bodies of Alan and Saya at the source. Gong and Sylvio were surprised on how Kite was able to counter Shay's "asked the [[Raidraptor - Blaze Falcon (anime)Gloria Tyler|Blaze Falconfemale]]" [[Effect]] with "[[Cipher Bit (anime)Grace Tyler|Cipher Bit]]" and turn it into a [[Xyz Material|Overlay UnitDuelists]]that had defeated the two Resistance members if they were from Duel Academy. When the Duelists asked who he was, Sylvio was also surprised how Kite brought out two "Galaxy-Eyes" when it was destroyed revealed he and the others were Lancers, and he and Gong Dueled the first timeTyler sisters. When Shay started using action cards to overcome <ref name="ep107"Galaxy>{{episode|Yu-Eyes", Gi-Oh! ARC-V|107|ref}}</ref> Sylvio and Gong explained the effects of each card he used. They were surprised when Yuya revealed that Yuto is residing inside of him. After Kite defeated Shay and was about as well due to seal him in a cardthe handicap that the Tag Duel gave Gong, Sayaka begged not to before revealing that she had witnessed Lulujust as Yuya and Shay arrived. Sylvio remained unconscious for most of the Duel; waking when the Tyler sisters's kidnapping by [[YuriLP]]was raised to 10,100, and wondering what Yuya could do. This revelation shocked Sylvio, He was pleased when Yuya and Kite reluctantly complied before leaving againShay were able to defeat the Tyler sisters.<ref name="ep105ep108">{{episode|Yu-Gi-Oh! ARC-V|105108|ref}}</ref>

After Alan accepted Yuya as a comrade, the [[File:Gong and Sylvio Find Allen and Sayaka.png|thumb|left|Sylvio and Gong find an injured Allen and Sayaka.Obelisk Force]]After Sayaka ran off arrived to go find Kite, challenge them. Sylvio returned to the hideout and told Gong he couldn't find her. Shay arrived and decided wanted to split join the Lancers into two groups to find SayakaDuel, but their injuries. While searching through Heartland, Gong and Sylvio heard something and ran to it. They arrived to see Allen and Sayaka on was worried when Shay was taken out of the Duel by falling debris from the ground defeated. Sylvio asked shockwave caused by the attack of "[[Gloria TylerChaos Ancient Gear Giant (anime)|femaleChaos Ancient Gear Giant]] [[Grace Tyler|Duelists]] if they were from Duel Academy. When the Duelists asked who he was, Sylvio revealed he and the others were Lancers. They then prepared to Duel against the female Duelists".<ref name="ep107ep109">{{episode|Yu-Gi-Oh! ARC-V|107109|ref}}</ref> However, Sylvio and Gong were defeated as well and found A squad led by Yuya and Shay. When the Tyler sisters' Duel Academy Commander-in-chief [[LPAster Phoenix (ARC-V)|Aster Phoenix]] was raised to 10surrounded them,100but Kite, Sylvio wondered what Yuya was gonna do. He was happy when who had shown up to help Yuya and Shay were able , defeated the attackers, allowing everyone to defeat the Tyler sistersescape while Yuya Dueled Aster.<ref name="ep108ep110">{{episode|Yu-Gi-Oh! ARC-V|108110|ref}}</ref>

After Allen accepted Yuya as a comrade, [[File:Kaito and Lancers 112-1.png|thumb|250px|The [[Lancers]] and [[Kite Tenjo (ARC-V)|Kite]] going to the Obelisk Force arrived to challenge them[[Fusion Dimension]]. ]]Sylvio and Gong wanted others made it back to join but the hideout with Shay and watched over him while the Resistance went back for Yuya. They learned that the Duel Academy forces in Heartland had decided to stay out because abandon the [[Arc Project]] and help rebuild the [[Xyz Dimension]] as a means of their injuriesatonement. When Sylvio agreed with Alan when he expressed his concern over the Obelisk Force tried decision to defeat let Duel Academy help even if Yuya had opened their hearts. Yuto talked through Yuya before his turn, During the Dueland Sylvio wondered if Yuya was talking, Sylvio but Gong clarified that it was Yuto. He was worried surprised when Shay Aster revealed that there was taken out of a way to restore the people who had been sealed into cards, but they would first have to retrieve the cards from Duel by falling debris from "[[Chaos Ancient Gear Giant (anime)|Chaos Ancient Gear Giant]]" shockwaveAcademy in the Fusion Dimension.<ref name="ep109">{{episode|Yu-Gi-Oh! ARC-V|109|ref}}</ref> When Sylvio, Yuya, Gong, and Kite bid goodbye to their allies and they traveled to the Fusion Dimension using the [[Aster Phoenix (ARC-V)Interdimensional Travel Technology|AsterInterdimensional Travel Device]]in Duel Academy's squad started to surround them Kite defeated the attackers, allowing everyone to escape while Yuya Dueled Asterbase.<ref name="ep110">{{episode|Yu-Gi-Oh! ARC-V|110|ref}}</ref>

[[File:Kaito and Lancers 112-1.png|thumb|The [[Lancers]] and [[Kite Tenjo (ARC-V)|Kite]] going to the [[Fusion Dimension]].]]Sylvio and others made it back to the hideout with Shay and watched over him while the Resistance went back for Yuya. They then learned that Duel Academy in Heartland decided to abandon [[Arc Area Project]] and help rebuild the [[Xyz Dimension]] to atone for what they have done. Allen expressed his concern over their decision to let them help even if Yuya opened Upon their hearts and Sylvio understood what he meant. When Yuto started to talk through Yuya, Sylvio wondered if was Yuya talking but Gong corrected him. He was surprised when Aster revealed that there was a way to change back the people who had been carded. Howeverarrival, they first must retrieve those who were carded from Duel Academy in the Fusion Dimension since all the carded people were sent there. Using the [[Interdimensional Travel Technology|Interdimensional Travel Device]] in Duel Academy's base in Heartland, Sylvio, Yuya, Gong, and Kite went to Fusion Dimension and found Zuzu cornered by Duel Academy soldiers.<ref name="ep112">{{episode|Yu-Gi-Oh! ARC-V|112|ref}}</ref> He was surprised to see [[Iggy Arlo|Iggy]] in the Fusion Dimension. When Gong spotted [[DennisMcField]], and Sylvio told him to reveal [[Celina]]'s location. They were surrounded by Duel Academy soldiers and Sylvio Dueled them with Gong to protect Zuzu. However, their Duel was left unfinished due to the soldiers being focused on Yuya and Iggy's Duel. When Iggy activated "[[Evil-Sealing FlashRadiance of the Forbidden Spell]]", Sylvio was surprised when Iggy tried in an attempt to end the Duel with in a [[DRAW]]. He to Sylvio's surprise, and he watched Yuya escape from the pit that the card had created and applauded with everyone else for Yuya and Iggy's Duel.<ref name="ep113">{{episode|Yu-Gi-Oh! ARC-V|113|ref}}</ref>

Zuzu led Sylvio went , Yuya and Gong to the harbor with Yuya, Zuzu, and Gongwhere Yusho Sakaki was talking a boat to Duel Academy. HoweverUnfortunately, the ship left and before they arrived, so they tried to find a boat to catch up with it. But when they couldn't They were unable to find one [[a boat, until Celina]] appeared and told them to follow her.<ref name="ep114">{{episode|Yu-Gi-Oh! ARC-V|114|ref}}</ref> When they reached Celina led them to a ship, that Sylvio criticized it for being a pirate ship , and he wondered if it can could get them to Duel Academy. He got scared when , though he was intimidated by [[Captain SoloCutter]] came out and thought he was a real pirate. As they set sail on Captain SoloCutter's ship, more Duel Academy soldiers arrived by helicopter and Celina took Zuzu was taken hostage by a brainwashed Celina. Cutter's crewmates tied Sylvio and Gong were tied up by Solo's crewmates and Sylvio cursed Celina for betraying them. They He watched the Duel in worry as Cutter pressured Yuya Dueled against Solo and Sylvio wondered why Solo Fusion Summoned with "[[Captain Lock]]". When Solo revealed the effect of "Lock" that when a monster with 1000 or more ATK is on the field, "Lock" will destroy itself, Sylvio wondered why Solo would tell Yuya that since he prevented him from summoning monsters. He was worried when Yuya started losing LP and when Solo knocked Yuya off the ship until . Fortunately, [[Crow Hogan (ARC-V)|Crow ]] [[Assault Blackwing - Raikiri the Rain Shower (anime)|saved]] him. He Yuya, while Moon Shadow freed Sylvio and Gong were then freed by Moon Shadow and they jumped onto escaped to the speed boatspeedboat that the Lancers had brought. He was worried when Solo used "[[Grand Naval BattleSora Perse|Sora]]" to shoot at their speed boat. When Sora joined the Duel, and Sylvio tried to tell warn him about the effect of "Captain Lock" , but Sora somehow already knew how to counter it with his [[Extra Deck]]. When the effect by Fusion Summoning, as Gong told him that Sora can summon monsters from it as opposed explained to his hand, Sylvio remarked (who claimed that he already knew that). He watched Yuya and Sora defeat Solo Cutter and heard the message learned that [[Shinji Weber|Shinji ]] and [[Chojiro Tokumatsu|Chojiro sent ]] had urged the Lancers to leave rebuilding [[New Domino City (ARC-V)|New Domino City]] to them.<ref name="ep115">{{episode|Yu-Gi-Oh! ARC-V|115|ref}}</ref> When [[Declan Akaba|Declan ]] later revealed to everyone how the Lancers that he went travelled to Duel Academy three years ago previously and asked Yuya's father for help, . Sylvio was surprised. He also learned that Declan found out about had discovered [[Revival Zero]], another part of the Professor's plan involving that involved Celina and [[Yuri]] that may include , a boy from the Fusion Dimension who resembled Yuya, and possibly Yuya as wellhimself. He and other Declan advised the Lancers were told by Declan to believe in their friends' strength and fight to the very end. After arriving on the islandthey arrived at Duel Academy, Sylvio complained about climbing the mountain but having to climb a cliff, and Sora told him explained that it's was closer to the Professor's lab. <ref name="ep117">{{episode|Yu-Gi-Oh! ARC-V|117|ref}}</ref>

After climbing up scaling the mountaincliff, they were surrounded by Duel Academy students. They then agreed to As they had previously planned, the Lancers split up into two groups with ; Sylvio, Yuya, Gong, Sylvio, Crow, and Moon Shadow Dueling Dueled the students , while Declan's group continued to the lab. When the The students retreated, and when the Lancers chased after pursued them but they fell into a trap and were captured trapped in [[Big Haul|energy nets]]. They were then forced into a [[Survival Duel (ARC-V)|Survival Duel]] with five Duel Academy students that would only leave one man standing. When Yuya refused to participate in the Survival Duel, but Sylvio asked him if he would he rather just stand there and get carded be sealed into a card instead. Crow tried to help Sylvio explain the situation to Yuya before Moon Shadow went ahead to provide reconnaissance. However, they heard a scream and ran to the its location only to find a card containing [[Bernie|a Duel Academy student]] carded. They then heard something in the bushes and [[Ethan|another Another terrified student]] came out scared. emerged from the bushes, and Sylvio tried to question him , but the student ran away and he chased after Sylvio pursued him. He lost , not only losing the student and was , but getting separated from the others. He then walked around shouting As he looked for the student to come out until , [[Twilight Ninja Shingetsu (anime)|a shuriken]] came flying in front of was thrown past him and he wondered where it came had come from. He started running until he spotted [[Battle Beast|someone]] staring at him from the bushes<ref name="ep118">{{episode|Yu-Gi-Oh! ARC-V|118|ref}}</ref> and ran away he fled from his pursuer until falling he accidentally fell off the Duel arena and landed on a cliffledge. He climbed back up and reunited with Crow, but they realized that someone was watching them until as two more students, [[Emma(ARC-V)|twoEmma]] and [[Jacob|more]] students , arrived. Thinking they were his pursuers, Sylvio and Crow challenged them to a Duel, but before he could take the first turn, someone intruded into else entered the Duel.<ref name="ep119">{{episode|Yu-Gi-Oh! ARC-V|119|ref}}</ref>

The mysterious intruder defeated the two students and sealed them [[Emma (card)|into]] [[Jacob (card)|cards]], and Sylvio and Crow fled. Sylvio encouraged the Duelist to come out and face them, but Crow told Sylvio outright that he would be unable to defeat the Duelist and attacked Sylvio directly with "[[Assault Blackwing - Raikiri the Rain Shower (anime)|Assault Blackwing - Raikiri the Rain Shower]]", damaging his Duel Disk in the process. Sylvio quickly realized that Crow had done so on purpose in an attempt to protect him by removing him from the duelDuel. Crow's [[Blackwing - Last Will|attempt]] to defeat the Duelist failed, though it revealed him as the Battle Beast. Sylvio unsuccessfully attempted to stop Crow from being sealed into a [[Crow Hogan (ARC-V card)|card]], but he was able to recover the card before the Battle Beast could crush it and he tearfully lamented over Crow's demise. Yuya and Gong challenged the Battle Beast to a Duel, and Sylvio tried to join but his broken Duel Disk prevented him from doing so. He watched as the Battle Beast pushed Yuya and Gong to the brink of defeat and was surprised when Gong used an Action Card. He was also surprised when Gong lost and [[Jack Atlas (ARC-V)|Jack]] arrived in the arena.<ref name="ep120">{{episode|Yu-Gi-Oh! ARC-V|120|ref}}</ref> He Sylvio helped Gong up and thought he commented that Gong had held out because he knew Jack was coming, but Gong didnclarified that he hadn't know known that was going to would happen. When Jack explained that he had been sent by Crow's kids and he asked where Crow was. Sylvio tearfully, Sylvio revealed Crow's card while telling Jack explaining that Crow had tried to save him. Sylvio was amazed when Jack dealt was able to deal heavy damage to the Battle Beast but , and he wondered why it was had been so high until ; Gong reminded him of the effect of "[[Pollice VersoThumbs Down]]". When Sander brought "To his and Gong's surprise, [[Gladiator Beast Andabatae]]" back with "[[Gladiator Beast Tamer EditorSanders]]", Sylvio was surprised. He and Gong were surprised when Sanders revealed that the Professor had ordered him to eliminate Yuya. When This caused Yuya was in to become lost in thought, and they called out to him because of as Sanders' attackattacked. Sylvio criticized Sanders' teachings when he told his students to follow the rules despite having the fact that he had set five of them cardedup to be sealed into cards. He told Yuya not to get lost now and take on Crow and Moon's enemy. Sylvio was happy that "Andabatae's" effects were negated but annoyed that surprised when the Battle Beast used the effect of Sanders' "[[Gladiator Beast Assault Fort]]". He was surprised when Battle Tamer Editor (anime)|Gladiator Beast used the effect of "Tamer Editor]]" to destroy itselfin order to defeat Sanders.<ref name="ep121">{{episode|Yu-Gi-Oh! ARC-V|121|ref}}</ref>

[[File:Jack Helps Gong Up.png|thumb|left|250px|Sylvio along with and Jack helps help Gong to stand.]]He was surprised when To Sylvio's surprise, Yuya revealed claimed that the Battle Beast doesndidn't really want to fight. When Yuya revealed and he explained the similarities between him and Battle Beast, . Sylvio realized that the Battle Beast had become more aggressive when Crow drove him out of the jungle he became more aggressive. When the The students wanted declared their instructor belief that Sanders should be sealed into a cardfor losing, and Sylvio wondered if people's lives mattered to them. He was worried when Yuya was about to be defeated by the effect of "Gladiator Beast Tamer Editor". He Sylvio was surprised that Jack protected Yuya from during the second "Fort"Duel, but he was angry that Jack was sacrificing himself as he looked at Crow's card. When Jack destroyed everything with used the effect of "[[Tyrant Red Dragon Archfiend (anime)|Tyrant Red Dragon Archfiend]]"to destroy all cards on the field, and Sylvio reminded him that he had destroyed Yuya's monsters too. When Battle Beast brought out "[[Gladiator Beast Great Fortress]]", Sylvio wondered where he went. Sylvio was surprised when "Andabatae" ATK surpassed "Tyrant's". Sylvio wondered what Yuya was planning after he [[Special Summoning Summon]]ed [[Level 1]] [[Pendulum Monster]]s but got , and he was hit by a paintball from "[[Performapal Shieldrummer]]". When Yuya went for a direct attack, Sylvio was worried because of the of "Great Fortress". He was surprised when As Yuya's monsters engaged in a paintball fight with the "[[Gladiator Beast Gyzarus (anime)|Gladiator Beast Gyzarus]]s" came out the fortress with 3000 ATK. When Battle Beast Special Summoned via his "[[Gladiator Beast Augustus (anime)|Gladiator Beast AugustusPerformapal Pendulum Art & Clean]]", Sylvio was happy that its ATK was stuck at 1000. He was happy that Battle Beast no longer had any monsters in his fortress and that Yuya still had "Pararhino" to win. Sylvio Sanders thought it was the end but was surprised that Battle Beast still had a monster. He and Gong wondered what Yuya did when he activated the effect of "Guard Dance". When Sanders thought Yuya will would lose, and Sylvio asked him didnif he hadn't he learn learnt anything. When Indeed, Yuya mentioned defeated the Battle Beast, and reassured him that he would save the people that the Battle Beast cardedhad sealed into cards, prompting Sylvio looked to look at Crow's card. He told Yuya that they would catch up to him as he and Jack helped Gongup.<ref name="ep122">{{episode|Yu-Gi-Oh! ARC-V|122|ref}}</ref>

Sylvio and [[Gong Strong|Gong and Sylvio ]] arrived in the [[City (Fusion Dimension)|City]] and found a hurt [[Sora Perse|Sora ]] and [[AsterPhoenix (ARC-V)|Aster]] injured. They As they checked on them and , they learned that [[Yuya Sakaki|Yuya became the ]], [[Yuto]], [[Yugo]] and [[Yuri]] had become [[Supreme King Dragon Zarc Z-ARC (character)|Supreme King Dragon ZarcZ-ARC]], including how they were trying and that Aster and Sora had attempted to regain Yuya's heart through Dueling. Sylvio watched over Sora and Aster while Gong ran to join the Duel and heard a [[Phoenix Whirlwind|engine roaring]], heralding the arrive of [[Jack Atlas (ARC-V)|Jack]]. He was also surprised when Zarc To his shock, Z-ARC defeated his current opponents, [[Shay Obsidian|Shay]] and [[Kite Tenjo (ARC-V)|Kite]]. He Sylvio told Gong and Jack that he was counting on them, lending them his perseverance.<ref name="ep137">{{episode|Yu-Gi-Oh! ARC-V|137|ref}}</ref> [[File:Crow and Sawatari Join The Duel.png|thumb|250px|Sylvio and a revived Crow enter the Duel against Z-ARC.]]Despite this, Sylvio was furious that he was being left out of an important Duel, and he blamed [[Crow Hogan (ARC-V)|Crow]] for destroying his [[Duel Disk]]. He explained to Sora how Crow had saved him from the [[Battle Beast]], and that he was sure their thoughts would reach Yuya. [[Z-ARC]] brought out "[[Supreme King Dragon Clear Wing (anime)|Supreme King Dragon Clear Wing]]", angering Sylvio even further as he believed that he could reach Yugo with his Dueltaining if his Duel Disk worked. Z-ARC used the effect of "Clear Wing" [[equip]]ped with "[[Supreme Presence]]" to destroy all of Gong's monsters, and Sylvio begged Crow to protect him. Gong and Jack survived through the effect of "[[Superheavy Samurai Warchief Heavystrong]]", and Sylvio was overjoyed and asked Crow if he saw how Gong protected "[[Scarlight Red Dragon Archfiend (anime)|Scarlight Red Dragon Archfiend]]". He was surprised when [[New Domino City (ARC-V)|New Domino City]] materialized in the Fusion Dimension, but he declared his belief that Jack could cross a materializing highway to reach Yuya. Gong was defeated, and the shockwave caused Sylvio to lose Crow's card. As Sylvio checked on Gong, Gong explained that that Z-ARC had reacted to the word Dueltaining. Gong gave Sylvio his Duel Disk and [[Yuya's pendant]], and to Sylvio's surprised joy, Crow arrived, freed from his card. Sylvio and Crow joined the Duel as Z-ARC defeated Jack, both receiving intrusion penalties. Sylvio put Yuya's pendant on and he announced that he would decide the Duel.<ref name="ep138">{{episode|Yu-Gi-Oh! ARC-V|138|ref}}</ref> [[File:Crow and Sylvio in a roof-0.png|thumb|250px|left|Sylvio and Crow are defeated by Z-ARC.]]Sylvio told Z-ARC if carded person could rise, even Z-ARC won't able to revive and want to bring Yuya back. However, he got angry when Crow went before him and was surprised when Crow negated the effect of "[[Supreme King Gate Zero (anime)|Supreme King Gate Zero]]" and dealt damage to Z-ARC. He made fun of Z-ARC about in denial of losing and took his turn using Yuya's catchphrase in an attempt to remind what real [[Dueltainer|Dueltainment]] is. He [[Pendulum Summon]]ed "[[Abyss Actor - Superstar (anime)|Abyss Actor - Superstar]]", "[[Abyss Actor - Wild Hope (anime)|Wild Hope]]", and "[[Abyss Actor - Leading Lady (anime)|Leading Lady]]" while Z-ARC Summoned "[[Supreme King Dragon Odd-Eyes (anime)|Supreme King Dragon Odd-Eyes]]" during his turn due to its own effect. Sylvio told Yuya he did it properly and used the effect of "Superstar" to add "[[Abyss Script - Rise of the Abyss King (anime)|Abyss Script - Rise of the Abyss King]]" to his hand but Z-ARC used the effect of "[[Supreme King Z-ARC (anime)|Supreme King Z-ARC]]" to destroy it due to being added to his hand outside the [[Draw Phase]]. Sylvio told Z-ARC he was so scared and used "[[Abyss Script - Abysstainment (anime)|Abyss Script - Abysstainment]]" to [[Set]] "Rise of the Abyss King" by [[Tributing]] "Leading Lady". He then activates it to destroy "Z-ARC" and "Odd-Eyes" equal to the number of "[[Abyss Actor]]" monsters he controls. When Z-ARC tried to use "[[Supreme Faceoff]]", Sylvio used the second effect of "Abyss Entertainment" to prevent him from activating it while he controls a [[Level 7 Monster Cards|Level 7]] "Abyss Actor" monster. But, Z-ARC used the effect of "Odd-Eyes" to protect [[Pendulum Monster]]s from being destroyed. Sylvio told Yuya the "Yuya Sakaki" he knew wasn't a coward to be so defensive and that he put braved danger to pull off a great escape. He asked Yuya where that courage come from and told him if he keeps forgetting, he'll keep reminding him. Sylvio used "Abyss Entertainment" again by Tributing "Wild Hope" and setting "Abyss King" again, which he activates to target "Z-ARC". However, "Z-ARC" was unaffected due to [[Fusion Monster|Fusion]], [[Synchro Monster|Synchro]], and [[Xyz Monster]]s being in the [[graveyard]] or [[banish]]ed, and cannot be destroyed. He was surprised to see [[Leo Akaba]] intruding the Duel and send his "[[Master Spirit Tech Force - Pendulum Ruler]]" to the Graveyard. Z-ARC defeated Leo before he could play any more cards, and then forced "Superstar" and Crow's "[[Assault Blackwing - Chidori the Rain Sprinkling (anime)|Assault Blackwing - Chidori the Rain Sprinkling]]" to attack "Z-ARC", doubling the damage with the effect of "Odd-Eyes" and defeating Sylvio and Crow as well. They fell from "Crossover", landing hard on the roof of a building, leaving only [[Declan Akaba|Declan]] facing Z-ARC.<ref name="ep139">{{episode|Yu-Gi-Oh! ARC-V|139|ref}}</ref> He told Declan to pull Yuya's soul out of Z-ARC and threw Yuya's pendant to him. He and Crow were pleased when Declan was also able to damage Z-ARC. Sylvio was surprised when he thought "Z-ARC" had killed Declan, but relieved that [[Moon Shadow]] had returned and saved Declan. He was pleased when [[Ray Akaba|Ray]] [[Four Nature Cards|turned]] all of Z-ARC's monsters into [[Normal Monster]]s with their effects negated. When Yuya re-took control from Z-ARC and revived "Supreme King Z-ARC", Sylvio worried that Yuya wasn't fully in control.<ref name="ep140">{{episode|Yu-Gi-Oh! ARC-V|140|ref}}</ref> Following Z-ARC's defeat and the rebirth of the [[Standard Dimension]] into the '''"Pendulum Dimension"''', Sylvio lost his memories of [[Zuzu Boyle|Zuzu]] and the [[Lancers]] adventures. He received a invitation from Declan for the [[Arc League Championship|Junior Arc League Championship]] and met Yuya and Gong at [[Leo Institute of Dueling]]. They learned from Declan that they would Duel in a [[Battle Royal]] first. Upon "[[Quartet of Quandry]]" [[Activate|activating]], Sylvio wondered where was the fourth Duelist and was surprised when Moon Shadow arrived. He then vowed to win the Duel, bringing out "[[Abyss Actor - Curtain Raiser (anime)|Abyss Actor - Curtain Raiser]]" and attacked "[[Performapal Hip Hippo (anime)|Performapal Hip Hippo]]" while using its effect to double its [[ATK]] during [[damage calculation]]. However, Yuya [[Evasion|dodged]] the attack and Sylvio sets a card. When Moon Shadow reminded them of the Arc League Championship, Sylvio's memories started to return and watched Yuya take damage from the effect of "[[Twilight Ninja Shingetsu]]". When Moon Shadow used the [[Pendulum Effect]] of "[[Twilight Ninja Kagen (anime)|Twilight Ninja Kagen]]" to copy "[[Twilight Ninja Jogen (anime)|Twilight Ninja Jogen]]'s" effect, Sylvio noted Yuya would survive and was having a poor endgame.<ref name="ep141">{{episode|Yu-Gi-Oh! ARC-V|141|ref}}</ref> When Yuya used "[[Miracle]]" to protect himself, Sylvio used "[[Abyss Improv]]" to increase the [[battle damage]] by "Curtain Raiser's" ATK. However, Gong increased "[[Hippo Token]]'s" [[DEF]] with the effect of "[[Superheavy Samurai Helper (anime)|Superheavy Samurai Helper]]", causing Moon Shadow to receive the damage. When Yuya attacked "Curtain Raiser", Sylvio used its effect to double its ATK to lower the damage, but was still attacked directly by "Hip Hippo". He then Pendulum Summoned "Superstar" and "Curtain Raiser" from his [[Extra Deck]] and yelled out at Yuya to stop spacing out after he used "[[Dragon's Shadow Performance]]". He used the [[Pendulum Effect]] of "[[Abyss Actor - Funky Comedian (anime)|Abyss Actor - Funky Comedian]]" to increase "Superstar's" ATK by adding "Curtain Raiser" to his Extra Deck. He then used the effect of "Superstar" to search out and activate "[[Abyss Script - Shadow Spirit]]", attacking "Hip Hippo" and making its ATK equal to its DEF, but Yuya used "[[Encore]]" to copy the effect of "Evasion" from the Graveyard. Sylvio used "[[Abyss Entertainment]]" to allow "Superstar" to attack again, but Yuya used the second effect of "Dragon's Shadow Performance" to prevent "[[Odd-Eyes Pendulum Dragon (anime)|Odd-Eyes Pendulum Dragon]]" from being destroyed. When, [[Skip Boyle|Skip]] arrived at the stadium and told Yuya that Zuzu was gone, Sylvio regained his memories of her. To his shock, Gong gave up his [[LP]] to use the effect of "[[Superheavy Samurai Preparation]]" to weaken "Superstar" and defeated him with "Big Benkei".<ref name="ep142">{{episode|Yu-Gi-Oh! ARC-V|142|ref}}</ref> To Sylvio's surprise, [[Henrietta Akaba|Henrietta]] revealed a baby Riley, and Sylvio wondered why Riley was a baby. He learned that the [[Four Nature Cards]] turned Riley back into a baby and lost his smile due to absorbing Z-ARC's soul to save Yuya. He also learned the reason for reenacting the Arc League Championship was to return Riley's smile and save the world through Yuya's Dueltaining. Sylvio doubted Riley's smile would save the world but was surprised when Yuya mentioned Z-ARC's soul being in some part of Riley. He also learned that Z-ARC will resurrect and the world will be at risk again if they don't do it. Sylvio was surprised when Gong summoned a [[Superheavy Samurai Steam Train King (anime)|new monster]] and rode it. He then ran out of the way before "Train King" could run over him.<ref name="ep143">{{episode|Yu-Gi-Oh! ARC-V|143|ref}}</ref> He is later seen watching Yuya's Duel against Jack with Gong, [[Aura Sentia|Aura]] and the kids from [[You Show Duel School]]. Sylvio and Gong discussed how Jack countered Yuya's attack and summoned a [[Red Giant|new monster]].<ref name="ep146">{{episode|Yu-Gi-Oh! ARC-V|146|ref}}</ref> He celebrated Yuya's victory, but he was surprised when Declan and Yuya ended up Dueling. Sylvio wondered why Yuya didn't Pendulum Summon "[[Performapal Duck Dealer]]" but was pleased when Yuya did so. He was amazed when Yuya made a comeback against Declan's "[[D/D/D Doom King Armageddon (anime)]]s". Sylvio was surprised when Declan summoned "[[D/D/D Super Doom King Purple Armageddon (anime)|D/D/D Super Doom King Purple Armageddon]]", "[[D/D/D Super Doom King Bright Armageddon (anime)|D/D/D Super Doom King Bright Armageddon]]", and "[[D/D/D Super Doom King Dark Armageddon (anime)|D/D/D Super Doom King Dark Armageddon]]".<ref name="ep147">{{episode|Yu-Gi-Oh! ARC-V|147|ref}}</ref> He was worried when Yuya took huge damage from the four dragons being destroyed. Sylvio was amazed when Yuya used the effect of "[[Odd-Eyes Wing Dragon (anime)|Odd-Eyes Wing Dragon]]" to destroy all of Declan's monsters. He then wondered why Yuya attacked "Darkness Armageddon" due to its ATK being higher than "Wing Dragon". Sylvio cheered Yuya on when he used the effects of "[[Odd-Eyes Xyzgate]]" and "[[Wonder Chance]]" to give "[[Odd-Eyes Rebellion Dragon (anime)|Odd-Eyes Rebellion Dragon]]" additional attacks. However, he was surprised when Declan survived the attacks and happy when Yuya was able to Pendulum Summon again. When Yuya and Declan were collecting [[Action Card]]s due to the effect of "[[Performapal Five-Rainbow Magician (anime)|Performapal Five-Rainbow Magician]]", Sylvio and Gong were surprised at how Declan was stealing Yuya's shine. They were also worried when Declan was catching up to Yuya and Sylvio was pleased that Yuya was able to get five first. He was pleased when Yuya won and was transported to the field by Ray to witness Zuzu's revival.<ref name="ep148">{{episode|Yu-Gi-Oh! ARC-V|148|ref}}</ref>

Sylvio is shown to greatly respect and admire [[Declan Akaba|Declan]]'s Dueling abilities as shown when he bragged about how he was well known for his multiple Summoning methods to [[Dennis MacfieldMcField|Dennis]]. Declan in return, is shown to have faith in Sylvio's abilities as shown by how he entrusted Sylvio with the task of taking [[Yuya Sakaki|Yuya]]'s [[Pendulum Monster]]s, had him test a "[[Yosenju]]" Pendulum Deck, and had him become a [[Lancers|Lancer]] to aid the others during the invasion by the [[Obelisk Force]]. Declan also taught Sylvio how to Pendulum Summon. It is implied they have some prior connection because there is no other reason given as to why Declan would choose him to steal Yuya's cards.

When [[Crow Hogan (ARC-V)|Crow]] and his gang saved Sylvio and the other [[Lancers]] from [[Security]], Sylvio showed sincere respect and gratitude to Crow. While Crow found Sylvio's claims about the Lancers and [[Standard Dimension]] strange, he didn't seem to dislike Sylvio. After Sylvio defended Crow from a large Security guard which allowed Crow and his friends to escape, they seem to have gained respect for each other, giving each other a thumbs up. When  Despite being initially angry that Crow had sacrificed himself to save him, when Crow was sealed into a [[Crow Hogan (ARC-V card)|card]] by [[Battle Beast]], Sylvio grew extremely upset and immediately ran to save his card when Battle Beast was about to step on it, showing how much he cares for and respects Crow. Due to Crow's actions Sylvio came to recognize the importance of others sacrificing themselves for those they care about, and behaved more emotionally than usual. He was horrified when he lost the card, but overjoyed when Crow was freed from the card and returned to Duel Z-ARC with him.

Despite While not getting along at first, Sylvio and Gong grew to be friends and allies as part of the Lancers and mutual friends of Yuya. They have been each other's most frequent tag-team partners in Duels. Gong later entrusted his Duel Disk and Yuya's pendant to Sylvio, believing that he could get through to Yuya.

Sylvio's Deck has changed drastically over the course of the anime. He has , having used four completely different Decks, but according to [[Katsumi Ono]], he will use an "[[Abyss Actor]]" Deck for the rest of the series.<ref>{{citeweb|url=https://stardustjunction.wordpress.com/2015/03/13/anime-news-interview-with-director-ono-easter-eggs-etc/|title=Anime News: Interview with Director Ono, Easter Eggs etc}}</ref>

Sylvio initially plays a '''"[[Dart]]" Deck'''. All the cards in this Deck (besides the "Magicians" he stole from [[Yuya Sakaki|Yuya]]) are [[Parallel Rare]]. His strategies focus on his "Dart Striker" monsters powering one another up through their effects, which receives a strong boost from his use of [[Pendulum Summon]]ing during his Duel with Yuya.

{{Decklist|Darts Dart Deck|effect monsters =

|pendulum monsters =

|spells =

|traps =

Sylvio later plays a '''[[WATER]] [[Monarch (series)|Monarch]] Deck''', which focuses on [[destroy|destroying]] ing [[Spell Card|Spell]]/[[Trap Card|Trap]] Cards and [[Summon]]ing "[[Mobius the Mega Monarch (anime)|Mobius the Mega Monarch]]". Like his "Dart" Deck, the cards in this Deck are Parallel Rare.

|effect monsters =

|spells =

|traps =

Sylvio uses a '''"[[Yosenju]]" Deck''' during the [[Arc League Championship]]that includes [[Pendulum Monster]]s. Sylvio focuses a lot of his strategies on swarming the field with his "Yosenju" monsters to accumulate counters on his "[[Yosen Training Grounds (anime)|Yosen Training Grounds]]" which he uses to gather the necessary cards for his strategies. He also uses a lockdown comprised of "[[Mayosenju Daibak (anime)|Mayosenju Daibak]]", "[[Yosen Whirlwind (anime)|Yosen Whirlwind]]" and "[[Dizzying Winds of Yosen Village (anime)|Dizzying Winds of Yosen Village]]", returning his opponent's cards to their Deck, putting them in a pinchand bypassing the ability of Pendulum Monsters to revive themselves. This Deck, unlike his previous two, is not comprised of Parallel Rare cards.

|effect monsters =

|pendulum monsters =

|spells =

|traps =

Sylvio's final Deck is an '''"[[Abyss Actor]]" Deck''', first used during the invasion of the [[Obelisk Force|Fusion Dimension Warriors]]. It focuses on [[Pendulum Summon]]s ing and is supported by the "[[Abyss Script]]" [[archetype]] of [[Spell Card]]s. During the Heartland City arcthird season, he also demonstrates a focus on restricting the opponent's [[Extra Deck]]. Like his previous "Yosenju" Deck, it is not composed of Parallel Rare cards. While Sylvio is never shown using any other Summoning methods with this Deck, he is shown to have a substantially sized-Extra Deck during his Duel with Yugo, implying he has access to others.

|pendulum monsters =* [[Abyss Actor - Curtain Raiser (anime)|Abyss Actor - Curtain Raiser]]

|spells =* [[Abyss ActorActors's Costume BoxChest]]* [[Abyss Costume - Dwarf's Shield of the Dwarf]]* [[Abyss Costume - Hero's Sword of the Valiant]]* [[Abyss Entertainment]]

* [[Abyss Script - Abode of the Fire Dragon Abysstainment (anime)|Abyss Script - Abode of the Fire DragonAbysstainment]]

|traps =* [[Abyss Actor's VacancyInjury]]* [[Abyss Improv]]

|normal monsters =

|effect monsters =

|ritual monsters =

|spells =

|traps =

| [[Sector Security (ARC-V)|Sector Security]] officer || [[Yu-Gi-Oh! ARC-V - Episode 056|56]] || Lose

| [[Chojiro TokumatsuYuya Sakaki]], and [[Yuya SakakiChojiro Tokumatsu]] || [[Yu-Gi-Oh! ARC-V - Episode 062|62]] || No result

| 3 [[Stomptroopers]] officers || [[Yu-Gi-Oh! ARC-V - Episode 063|63]] || Win (with [[Gong StrongYuya Sakaki]], [[Shay ObsidianGong Strong]] and [[Yuya SakakiShay Obsidian]])

| 5 [[Underground Labor Facility|Underground Facility]] guards Guards || [[Yu-Gi-Oh! ARC-V - Episode 090|90]] || Win (with [[Shay Obsidian]])

| 5 [[Duel Chasers]]|| [[Yu-Gi-Oh! ARC-V - Episode 096|96]] || Win (with [[Chojiro TokumatsuDeclan Akaba]], [[Declan AkabaGong Strong]], [[Gong StrongShay Obsidian]], [[Riley Akaba]] and [[Shay ObsidianChojiro Tokumatsu]])

| [[Duel Academy (ARC-V)|Duel Academy]] Duelists || [[Yu-Gi-Oh! ARC-V - Episode 113118|113118]] || No result (with [[Yuya Sakaki]], [[Gong Strong]], [[Moon Shadow]] and [[Crow Hogan (ARC-V)|Crow Hogan]])|-| [[Emma (ARC-V)|Emma]] and [[Jacob]] || [[Yu-Gi-Oh! ARC-V - Episode 119|119]] || No result (with [[Crow Hogan (ARC-V)|Crow Hogan]])

| [[Duel Academy (ARC-V)|Duel AcademyBattle Beast]] Duelists || [[Yu-Gi-Oh! ARC-V - Episode 118120|118120]] || No result ; Lose (with [[Crow Hogan (ARC-V)|Crow Hogan]], [[Gong Strong]], [[Moon Shadow]] and [[Yuya Sakaki]])

| [[Emma]] and [[JacobZ-ARC]], /[[Battle BeastYuya Sakaki]] || [[Yu-Gi-Oh! ARC-V - Episode 119|119]]-[[Yu-Gi-Oh! ARC-V - Episode 120139|120139]] || Win (Emma and Jacob), No result (Battle Beast) Lose (with [[Crow Hogan (ARC-V)|Crow Hogan]])

| [[ZarcYuya Sakaki]], [[Gong Strong]], and [[Moon Shadow]] || [[Yu-Gi-Oh! ARC-V - Episode 139141|139141]] || TBD (with -[[Crow Hogan (Yu-Gi-Oh! ARC-V)- Episode 142|Crow Hogan142]]|| Win (Moon), Lose (Gong and Yuya)

* All of Sylvio's major wins on screen so far have been in Duels where he teamed up with other people.