Changes

| fr_name = Monsieur Heartland<ref>{{cite web|url=http://www.canalj.fr/La-tele/Dessins-animes/Yu-Gi-Oh-Zexal/Personnages/Monsieur-Heartland|accessdate=February 26, 2015|title=''Yu-Gi-Oh! ZEXAL'' Personnages|publisher=http://www.canalj.fr/Canal J}}</ref>| age =

| en_voice = {{voice actors|en|Marc Thompson}}<ref>{{cite web |title=Mr. Heartland Character Profile |url=https://yugioh.com/characters/mr-heartland |website=Official Yu-Gi-Oh! Site |access-date=15 June 2022 |language=en}}</ref>| ja_voice = {{voice actors|ja|Jūrota Jūrōta Kosugi}}

[[File:Mr_Heartland_RebornMr Heartland Reborn.png|thumb|200px|left|Mr. Heartland's second outfit.]]

[[File:Mr._HeartlandHeartland's_Barian_Forms Barian Form.png|thumb|right|Mr. Heartland's [[Barian]] form.]] Heartland's [[Barian]] form gives him a distinct, demonic appearance vaguely similar to [[Number 1: Infection Buzz King(anime)|his "Number"]] with purple and red skin, yellow eyes, bulging muscles, and a set of insect wings with a dark red fly thorax at the back. He loses his glasses and his head mutates and elongates, giving it the appearance of a bulbous thorax. His new face appears fairly insectile with jagged teeth and a set of jagged mandibles across his face (which makes him, along with and [[Chironex]], the only Barian Barians to have a moving mouthmouths). He also features seven red eyes along his abdomen and one at the top of his forehead.

After being returned to his human form by [[Vector]], Heartland gained the ability to summon a swarm of [[Barian]] insects and the ability to teleport using [[Overlay Network]]s. Like the other members of his gang, he can summon [[Don Thousand's Emblem]] to halve his opponent's [[Life Points]] and add it to his own.

Kite would later call him "a petty cat-burglar" who Faker used as a front for his activities, though he could have simply been insulting Heartland. <ref name=ep122>{{episode|Yu-Gi-Oh! ZEXAL|122|ref}}</ref>

Mr. Heartland announced the start of each day of the World Duel Carnival with his signature phrase, "Heart Burning!" He urged the Duelists to do their best and clash with their passionate hearts.<ref name="ep26">{{episode|Yu-Gi-Oh! ZEXAL|26|ref}}</ref><ref name="ep33">{{episode|Yu-Gi-Oh! ZEXAL|33|ref}}</ref><ref name="ep45">{{episode|Yu-Gi-Oh! ZEXAL|45|ref}}</ref>

During Vetrix's Duel with [[Dextra]], Mr. Heartland purposely cut the feed of the footage to the audience, acting shocked in front of the audience and ordering his maintenance staff to get on it immediately. However, he then laughed to himself, stating that the Duel wasn't for them to witness.<ref name="ep54">{{episode|Yu-Gi-Oh! ZEXAL|54|ref}}</ref> This lasted until Kite defeated [[Quinton]].<ref name="ep56">{{episode|Yu-Gi-Oh! ZEXAL|56|ref}}</ref> During [[Reginald Kastle|Shark]]'s Duel with [[Quattro]], Mr. Heartland put the footage back up, but this was shortly lived as when Quattro Summoned "[[Number 15: Gimmick Puppet Giant Grinder (anime)|Number 15: Gimmick Puppet Giant Grinder]]", Vetrix cut the footage which Mr. Heartland was annoyed at.<ref name="ep57">{{episode|Yu-Gi-Oh! ZEXAL|57|ref}}</ref>

The footage was then put back up during Yuma's Duel with [[Nistro]]. Mr. Heartland altered the effect of the "[[Desert Field]]" [[Field Spell Card]] as a favor for Nistro. After Yuma defeated Nistro, Mr. Heartland was shocked and suspicious that Yuma used the "[[Number 39: Utopia (anime)|Number 39: Utopia]]" card.<ref name="ep59">{{episode|Yu-Gi-Oh! ZEXAL|59|ref}}</ref>

When Kite, Shark, [[Tori Meadows|Tori]], and [[Orbital]] 7 raided Heartland Tower after Yuma's Duel with Vetrix, Mr. Heartland confronted them on his flying platform hovering over a shaft leading to the portal to [[Astral World]]. He sent a squad of [[litterbots]] to stop them, but after Orbital 7 sacrificed himself to shut down the robots, Mr. Heartland's flying platform lost power as well, causing him to plummet down the shaft through the portal.<ref name="ep68">{{episode|Yu-Gi-Oh! ZEXAL|68|ref}}</ref> Apparently, Mr. Heartland was sent into [[Barian World]] instead of Astral World for some unknown reasons.

Vector called upon Heartland later, who used Thousand's powers to restore his human form. He granted Heartland four [[Barian Number|fake "Numbers"]], including "[[Number 1: Infection Buzz King(anime)|Number 1]]" and instructed him to return to Earth with the rest of the [[Fearsome Four of the Dark Dueling World]]. One member, [[Erazor]], began to prey on Duelists, stealing their memories. When [[Super Secret Number Card Investigation Club|Yuma's friends]] came to [[Heartland Memorial]], which they had been using as a headquarters, Erazor captured them and stole their memories. Heartland communicated with Yuma via hologram to lure him to the location. Rather than Duel, Heartland suggested Yuma just give him the "Numbers" - this is a war between the [[Astral World|Astral]] and [[Barian World]]s; humans have no place in it. With Astral gone, Yuma had no reason to care about the "Numbers" anyway. He offered to restore the memories of Yuma's friends and even erase the memories pertaining to Astral, allowing Yuma to return to the kind of life he led before Astral arrived. Yuma refused, but before Heartland could do anything else, [[Trey]] arrived and threw a sword at him. Heartland phased out with his powers to avoid it. Erazor was willing to Duel them both. When the Duel began, Heartland activated a device that halved Yuma's and Trey's [[Life Points]] and gave them to Erazor.<ref name=ep112>{{episode|Yu-Gi-Oh! ZEXAL|112|ref}}</ref>

After Erazor's defeat, Heartland reported the failure to Vector and apologized. Vector responded that he would tolerate no more failures. Heartland revealed he had the next assassin set up - [[Chironex]], a [[WATER]] Duelist who once served as Heartland's own mentor. Upon hearing this, Vector ordered Heartland to send Chironex after [[Reginald Kastle|Shark]] and mused that whenever he thinks of Shark, his chest fills with rage.<ref name="ep114">{{episode|Yu-Gi-Oh! ZEXAL|114|ref}}</ref> After Chironex was defeated by Shark and [[Quattro]], Heartland sent his last assassin, [[Scritch]]. His mission was to prevent Yuma from going to Astral World, but Kite and Quinton defeated him, leaving Mr. Heartland as the only member of the Fearsome Four.<ref name=ep117>{{episode|Yu-Gi-Oh! ZEXAL|117|ref}}</ref> Vector gave Mr. Heartland a "Number", which should enable his victory against Shark and [[Kite Tenjo|Kite]]. Heartland came back to Earth and told Yuma's friends Barian World is fusing with the Earth through the fake "Numbers" that rained from the sky. To stop him, Kite challenged him to a Duel, but the "Number 2" he obtained from [[Scritch]], plus the power of "Number 1" caused him so much pain that he fell down. As Mr. Heartland laughed, he was shocked to see Yuma back from the expedition to Astral World, with Astral by his side.<ref name=ep122>{{episode|Yu-Gi-Oh! ZEXAL|122|ref}}</ref>

Yuma and [[Astral]] took Kite's place and Dueled Mr. Heartland, who revealed his demonic [[Barian]] form to the pair. As the Duel intensified, Yuma and Astral performed [[ZEXAL III]] and then through a combination of "[[ZS - Vanish Sage (anime)|ZS - Vanish Sage]]" and Kite's "[[Galaxy-Eyes Photon Dragon (anime)|Galaxy-Eyes Photon Dragon]]" they defeated Mr. Heartland, who cursed his defeat at the duo as he returned to human form. After the Duel, the fake "Numbers "[[Number 1: Infection Buzz King(anime)|1]]", "[[Number 2: Ninja Shadow Mosquito(anime)|2]]", "[[Number 3: Cicada King(anime)|3]]" and "[[Number 4: Stealth Kragen(anime)|4]]" appeared from Heartland, being surrounded in black flames. They enveloped Heartland, who screamed in pain and horror as he desperately tried to plead mercy to Vector. The flames changed into a reddish color and briefly took the shape of Don Thousand, who Astral recognized, before Heartland was completely incinerated. <ref name=ep123>{{episode|Yu-Gi-Oh! ZEXAL|123|ref}}</ref>

==Manga biographyOther appearances=={{Main|Mr. Heartland (manga)}}[[File:Mr Heartland (manga).png|thumb|150px|left|Mr. Heartland in the manga.]]In the [[Yu-Gi-Oh! ZEXAL (manga)|manga]], Mr. Heartland has a different background and a much larger role, serving as the main antagonist at the beginning of the series. He commanded a legion of [[Number Hunter]]s while in the service of [[Dr. Faker (manga)|Dr. Faker]] to collect the "[[Number|Numbers]]" and destroy [[Astral World]]. He was also the director and mascot for [[Heartland Theme Park]], which served as Faker's base of operations.{{-Character other appearances}}

Mr. Heartland uses an '''"[[Infection]]" Deck''', centered around "[[Infection Fly]]" and its ability to double its [[Level]], by quickly Summoning three of them to achieve high Levels to [[Xyz Summon]] his ace monster, "[[Number 1: Infection Buzz King (anime)|Number 1: Infection Buzz King]]". This card takes advantage of the opponent's "[[Number]]s" to use them as re-usable [[Xyz Material|Overlay Units]] for its [[destroy|destruction]] [[effect]] that can inflict [[effect damage]]. If that fails, he uses various [[Spell Card|Spell]]/[[Trap Card]]s to Summon "[[Infection Bug Token]]s", which are able to whittle away at his opponent's [[Life Points]].

|effect monsters =

|xyz monsters = * [[Number 1: Infection Buzz King (anime)|Number 1: Infection Buzz King]]|spells =

|traps =