{{Infobox/Yu-Gi-Oh!/Episodeepisode | series = Yu-Gi-Oh! GX | season = 1 | image name = Series021.jpg | image size = 200px | image caption = | english en_name = The Duel Off, Part 1 | kanji ja_name = 融合封じ！ 十代ＶＳ三沢（前編） | romaji romaji_name = Yūgō Fūji! Jūdai Bāsasu Misawa (Zenpen) | japanese translated ja_trans_name = Sealed Fusion Seal! Judai VS Versus Misawa (Part 1) | episode number = 21 | japanese air date ja_air_date = February 23, 2005 | english air date en_air_date = November 22, 2005 | japanese opening ja_opening = [[Rising Weather Hallelujah]]<br />(快晴・上昇・ハレルーヤ) | japanese ending ja_ending = [[Borderline Battle]]<br />(限界バトル) | english opening en_theme = [[Get Your Game On! (song)|Get Your Game On!]]featured_card = | featured card screenwriter = Cursed Seal of the Forbidden SpellAkemi Omode| animation_director = * [[Lee Ok Mi]]* [[Jung Seung Jun]]

'''"The Duel Off, Part 1"''', known as '''"Sealed Fusion Seal! Judai VS Versus Misawa (Part 1)"''' in the Japanese version, is the twenty-first episode of the ''[[Yu-Gi-Oh! GX]] '' anime. it first aired in Japan on February 23, 2005 and in the United States on November 22, 2005. {{Episode summary|[[Jaden Yuki]] is pitted against [[Bastion Misawa]] in a duel Duel to determine which of them will represent [[Duel Academy]] in the inter-school match against [[North Academy]]. At the same time, a reporter named [[Gerard]] arrives on the island, and goes undercover to gather information about the [[Abandoned Dorm]].}}

At the docks, a ship is unloading at [[Duel Academy]]. A scuba diver sneaks onto the island from the ship and states he's going to uncover the school's dark secrets. [[Chancellor Sheppard]] is having a staff meeting, in which the teachers attempt to decide who will represent Duel Academy in the inter-school match against [[North Academy]]. [[Vellian Crowler|Dr. Crowler]] insists that there is no reason not to have [[Zane Truesdale]], who also attends the meeting, as their representative just as it was last year. Sheppard reveals that North Academy has chosen a first-year student, so Sheppard wishes to to choose one as well. Zane has no problem with this, and suggests [[Jaden Yuki]] for the position. Crowler does not wish for a [[Slifer Red]] student, especially Jaden, to represent them, and nominates [[Bastion Misawa]]. He suggests that the two duel Duel to determine who will earn the right to be their representative. The scuba diver has infiltrated the school, and enters a locker room and steals a Slifer Red jacket, intending to use it to blend in with the students. [[Lyman Banner|Professor Banner]] announces the news to Jaden and Bastion during class, and Bastion reveals that he's been building an entirely new Deck specifically to counter Jaden's [[Elemental HeroesHERO]]es, and that he's nearly finished. The scuba diver wanders the halls, perplexed as to why [[Obelisk Blue]] and [[Ra Yellow]] students will not speak with him. Jaden meets with him, and assumes that he was held back a few years, as he appears older than a student should. Jaden drag him back to the Slifer dorm, where he rebuilds his Deck for his Duel with Bastion. He drops a "[[Skyscraper]]" card, and the diver picks it up, remembering his own past, where it appears he used an Elemental Hero Deck of his own, and suffered a loss to [[Seto Kaiba]]. He accidentally lets slip that his name is [[Gerard]] after insisting that Jaden cease calling him "old timer". He then states he doesn't like Dueling, leading them to question why he's at Duel Academy, and he says he doesn't enjoy it because he is not good at it. [[Chumley Huffington]] sympathizes with him, having been held back himself, and states that watching Jaden Duel inspired him to do better. [[Syrus Truesdale]] suggests that Gerard watch Jaden Duel, hoping this will help inspire him to become better himself. Gerard then attempts to get the information he needs out of them, and asks if they know if the rumors about disappearing students have any truth to them. Jaden asks if he means the [[Abandoned Dorm]], which intrigues Gerard, as he hadn't heard of it. This gives him a starting point for his research, and he later ends up outside the Abandoned Dorm, where he meets [[Alexis Rhodes]]. He questions her about the missing students, but she advises him to cease his search. She departs, and he pulls out a camera, and begins to take pictures, stating that if he breaks this story, the money he gets from it could set him up for life. At the [[Ra Yellow]] dorm, Bastion sits at his computer, still analyzing Jaden's Deck. He determines that he needs to stop Jaden from Summoning "[[Elemental Hero Flame Wingman (anime)|Elemental HERO Flame Wingman]]" and "[[Elemental Hero Thunder Giant (anime)|Elemental HERO Thunder Giant]]", which would mean stopping their respective [[Fusion Material]] Monsters. Racking his brains, he develops a strategy that would neutralize both threats. The next day, the whole school gathers to watch the Duel, and Gerard determines that with them distracted, this is his ideal time to act. He sneaks into the library, and begins attempting to hack into one of the school's computers. At the arena, the Duel begins, with Bastion Summoning "[[Carboneddon (anime)|Carboneddon]]" in [[Defense Position]]. Jaden Summons "[[Elemental Hero Burstinatrix (anime)|Elemental HERO Burstinatrix]]", using it to attack and destroy "Carboneddon" before [[Set]]ting a card. Bastion draws, thinking that the card he drew is the one that will lead him to victory. He Summons "[[Oxygeddon]]" and attacks, but Jaden [[negate]]s the attack by activating his [[face-down]] "[[Hero Barrier (anime)|Hero Barrier]]". Bastion Sets the card he drew and ends his turn. Jaden Summons "[[Elemental Hero Sparkman (anime)|Elemental HERO Sparkman]]" and [[equip]]s it with "[[Spark Blaster (anime)|Spark Blaster]]", using its effect to switch "Oxygeddon" to Defense Position. He attacks and destroys it with "Burstinatrix", which activates "Oxygeddon's" effect, dealing 800 damage to both players. Jaden attacks [[Direct attack|directly]] with "Sparkman", reducing Bastion to 1600 [[LP]]. This greatly worries Crowler, as he's the one who nominated Bastion for this Duel, and he appears to be losing so early on. Bastion Summons "[[Hydrogeddon (anime)|Hydrogeddon]]" and destroys "Burstinatrix" with it. Since it destroyed a monster in battle, "Hydrogeddon's" effect activates, letting Bastion Summon a second copy from his [[Main Deck|Deck]]. He then activates "[[Living Fossil (anime)|Living Fossil]]", [[Special Summon]]ing "Oxygeddon" from his [[Graveyard]], though its effect is negated and it's [[ATK]] decreased by 1000. He then plays "[[Bonding - H2O (anime)|Bonding - H2O]]", [[Tribute|Tributing]] his three monsters to Special Summon "[[Water Dragon (anime)|Water Dragon]]". Bastion believes that Summoning such a powerful monster will force Jaden to Summon a [[Fusion Monster]] - and fall right into Bastion's trap. Jaden plays "[[Polymerization (anime)|Polymerization]]" in an attempt to fuse "Sparkman" with the "[[Elemental Hero Avian (anime)|Elemental HERO Avian]]" and "[[Elemental Hero Bubbleman (anime)|Elemental HERO Bubbleman]]" in his hand to [[Fusion Summon]] "[[Elemental Hero Tempest (anime)|Elemental HERO Tempest]]". Bastion activates his face-down "[[Cursed Seal of the Forbidden Spell (anime)|Cursed Seal of the Forbidden Spell]]", discarding "[[Double Spell (later anime)|Double Spell]]" in order to negate "Polymerization" and prevent Jaden from playing it again during the current Duel, even if it's a different copy. With this, Bastion has sealed off Jaden's main method of Summoning his Fusion Monsters.

The scuba diver wanders the halls, perplexed as to why [[Obelisk Blue]] and [[Ra Yellow]] students will not speak with him. ==Featured Duel: Jaden meets with him, and assumes that he was held back a few years, as he appears older than a student shouldYuki vs. Jaden drag him back to the Slifer dorm, where he rebuilds his Deck for his duel with Bastion. He drops a "Misawa=={{ambox|text=This Duel uses [[Skyscraper]]" card, and the diver picks it up, remembering his own past, where it appears he used an Elemental Hero Deck of his own, and suffered a loss to [[Seto Kaiba]]. He accidentally lets slip that his name is [[Gerard]] after insisting that Jaden cease calling him "old timer". He then states he doesnYu-Gi-Oh! GX anime gameplay|''t like dueling, leading them to question why heYu-Gi-Oh! GX's at Duel Academy, and he says he doesn't enjoy it because he is not good at it. [[Chumley Huffingtonanime gameplay]] sympathizes with him, having been held back himself, . Rules and states that watching Jaden duel inspired him to do better. [[Syrus Truesdalecard effect]] suggests s may differ from that Gerard watch Jaden duel, hoping this will help inspire him to become better himself. Gerard then attempts to get the information he needs out of them, and asks if they know if the rumors about disappearing students have any truth to them. Jaden asks if he means the ''[[Abandoned DormTCG]], which intrigues Gerard, as he hadn't heard of it. This gives him a starting point for his research, and he later ends up outside the Abandoned Dorm, where he meets '/''[[Alexis RhodesOCG]]''. He questions her about See the missing students, but she advises him to cease his search. She departs, and he pulls out a camera, and begins to take pictures, stating that if he breaks this story, the money he gets from it could set him up individual card articles for lifemore information.}}

At the [[Ra Yellow]] dorm, <u>'''Turn 1: Bastion sits at his computer, still analyzing Jaden's Deck. He determines that he needs to stop Jaden from Summoning "[[Elemental Hero Flame Wingman]]" and "[[Elemental Hero Thunder Giant]]", which would mean stopping their respective [[Fusion Material Monsters]]. Racking his brains, he develops a strategy that would neutralize both threats. The next day, the whole school gathers to watch the duel, and Gerard determines that with them distracted, this is his ideal time to act. He sneaks into the library, and begins attempting to hack into one of the school's computers. At the arena, the duel begins, with '</u><br />Bastion Summoning "[[Carboneddon]]" in [[Defense Position]]. Jaden Summons "[[Elemental Hero Burstinatrix]]", using it to attack and destroy "Carboneddon". Jaden [[Set]]s Draw a card, and Bastion |draws, thinking that the card he drew is the one that will lead him to victory. He Summons "[[Oxygeddon]]" and attacks, but Jaden [[negate]]s the attack by activating his [[face-down]] "[[Hero BarrierCarboneddon (anime)|Carboneddon]]". Bastion Sets the card he drew and ends his turn. Jaden Summons "subsequently [[Elemental Hero Sparkman]]" and [[equipNormal Summon]]s him with "it (800/600) in [[Spark Blaster]]", using its effect to switch "Oxygeddon" to Defense Position. He attacks and destroys it with "Burstinatrix", which activates "Oxygeddon's" effect, dealing 800 damage to both players. Jaden attacks [[Direct attack|directly]] with "Sparkman", reducing Bastion to 1600 [[Life Points]]. This greatly worries Crowler, as he's the one who nominated Bastion for this duel, and he appears to be losing so early on.

Bastion Summons "[[Hydrogeddon]]" and destroys "Burstinatrix" with it. Since it destroyed a monster in battle, "Hydrogeddon<u>''s" effect activates, letting Bastion Summon a second copy from his [[Main Deck|Deck]]. He then activates "[[Living Fossil]]", [[Special Summon]]ing "Oxygeddon" from his [[Graveyard]], though its effect is negated and it's attack decreased by 1000. He then plays "[[Bonding - H2O]]", [[Tribute|Tributing]] his three monsters to Special Summon "[[Water Dragon]]". Bastion believes that Summoning such a powerful monster will force Turn 2: Jaden to Summon a Fusion Monster - and fall right into Bastion's trap. ''</u><br />Jaden plays "[[Polymerization]]" in an attempt to fuse "Sparkman" with the draws "[[Elemental Hero AvianBurstinatrix (anime)|Elemental HERO Burstinatrix]]" and "[[Elemental Hero Bubbleman]]" subsequently Normal Summons it (1200/800) in his hand to [[Fusion SummonAttack Position]] . "[[Elemental Hero Tempest]]". Bastion activates his face-down Burstinatrix"attacks and [[Cursed Seal of the Forbidden Spelldestroy]]s ", discarding Carboneddon". Jaden then [[Double SpellSet]]" in order to negate "Polymerization" and prevent Jaden from playing it again during the current duel, even if it's a different copy. With this, Bastion has sealed off Jaden's main method of Summoning his Fusion Monsterscard.

==Featured Duel=====<u>'''Turn 3: Bastion's turn===''</u><br />* Bastion draws "[[Normal SummonCursed Seal of the Forbidden Spell (anime)|SummonsCursed Seal of the Forbidden Spell]] ". He then Normal Summons "[[CarboneddonOxygeddon (anime)|Oxygeddon]]" (9001800/600800) in Attack Position. "Oxygeddon" attacks "Burstinatrix", but Jaden [[activate]]s his face-down "[[Defense PositionHero Barrier (anime)|Hero Barrier]]" to [[negate]] the attack as he controls an [[Elemental HERO]]. Bastion Sets a card.

===<u>'''Turn 4: Jaden's turn===''</u><br />* Summons Jaden draws "[[Elemental Hero BurstinatrixSparkman (anime)|Elemental HERO Sparkman]]" and subsequently Normal Summons it (12001600/8001400) in Attack Position. He then activates "[[Attack PositionSpark Blaster (anime)|Spark Blaster]].* Attacks " and [[destroyequip]]s it onto "CarboneddonSparkman".* Now during each of Jaden's Main Phases, he can switch the battle position of a monster. When this effect is used three times, "Spark Blaster" is destroyed. Jaden then activates the effect of "Spark Blaster" to switch "Oxygeddon" to Defense Position. "Burstinatrix" attacks and destroys "Oxygeddon". Since "Oxygeddon" was destroyed by a [[FIRE]] monster in battle and sent to the [[Graveyard]], its effect activates, inflicting 800 damage to both players (Jaden: 4000 → 3200 LP, Bastion: 4000 → 3200 LP). "Sparkman" attacks [[SetDirect attack|directly]]s a card(Bastion: 3200 → 1600 LP).

===<u>'''Turn 5: Bastion's turn===''</u><br />* Summons Bastion draws "[[OxygeddonHydrogeddon (anime)|Hydrogeddon]]" and subsequently Normal Summons it (18001600/8001000) in Attack Position.* Attacks "Hydrogeddon" attacks and destroys "Burstinatrix"(Jaden: 3200 → 2800 LP). Since "Hydrogeddon" destroyed a monster by battle and sent it to the Graveyard, its effect activates, but Jaden allowing Bastion to [[activateSpecial Summon]]s his face-down another "[[Hero Barrier]]Hydrogeddon", (1600/1000) from his [[NegateMain Deck|negatingDeck]] the attack.* Sets a cardin Attack Position.

===Jaden's turn===* Summons Bastion then activates "[[Elemental Hero SparkmanLiving Fossil (anime)|Living Fossil]]" to Special Summon "Oxygeddon" from the Graveyard (16001800/1400800) in Attack Position.* [[Equip]]s "Sparkman" and equip it with "[[Spark Blaster]]Living Fossil".* Uses Due to the effect of "Spark BlasterLiving Fossil" to switch , the effects of "Oxygeddon" to Defense Position.* Attacks are negated and destroys "Oxygeddon" with "Burstinatrix", with the former's effect activating, inflicting 800 damage to both players since it was destroyed by a [[FIRE]]-loses 1000 [[attributeATK]] monster (Jaden 3200, Bastion 3200"Oxygeddon": 1800 → 800 ATK).<ref group=Notes name=oxy>In the TCG/OCG, "[[Oxygeddon]]Bastion'shand contains " [[effectLitmus Doom Swordsman (anime)|Litmus Doom Swordsman]] ", "[[activateDouble Spell (later anime)|Double Spell]]s when it is [[destroy]]ed by a " and "[[Pyro]]Bonding -[[type]] [[Monster CardsH2O (anime)|monsterBonding - H2O]], so it would not have activated here as ". Bastion then activates "Bonding - H2O" to [[Elemental Hero BurstinatrixTribute]]his three monsters and Special Summon " is a [[Warrior]]-type.</ref>* Attacks [[Direct attackWater Dragon (anime)|directlyWater Dragon]] with "Sparkman" (Bastion 16002800/2600)from his Deck in Attack Position.

===Bastion<u>'''Turn 6: Jaden'''</u><br />Jaden's turn===* Summons hand contains "[[HydrogeddonElemental Hero Avian (anime)|Elemental HERO Avian]]" , "[[Elemental Hero Bubbleman (1600/1000anime) in Attack Position.* Attacks |Elemental HERO Bubbleman]]", and destroys Burstinatrix", with [[Bubble Blaster (anime)|Bubble Blaster]]"Hydrogeddon's. Jaden draws " effect activating, letting Bastion Special Summon another copy of it from his [[Main DeckPolymerization (anime)|DeckPolymerization]].* Activates "and subsequently activates it to [[Living FossilFusion Material|fuse]]"Sparkman", Special Summoning "OxygeddonAvian" from the , and "Bubbleman" to [[GraveyardFusion Summon]], though its effect is negated and it's attack decreased by 1000.* Activates "[[Bonding - H2OElemental Hero Tempest (anime)|Elemental HERO Tempest]]". Bastion, in response, activates his face-down "[[TributeCursed Seal of the Forbidden Spell (anime)|TributingCursed Seal of the Forbidden Spell]] his three monsters " to Special Summon negate the effect of "Polymerization"and destroy it by [[Water Dragondiscard]]ing " (2800/2600) in Attack PositionDouble Spell". In addition to this, Jaden is forbidden from activating "Polymerization" again for the remainder of the Duel.

The following cards appeared in this episode. Cards in italics debuted here.  

|normal monsters =<u>Normal Monsters</u>* [[Elemental Hero Avian (anime)|Elemental HERO Avian]]* [[Elemental Hero Burstinatrix (anime)|Elemental HERO Burstinatrix]]* [[Elemental Hero Sparkman (anime)|Elemental HERO Sparkman]]<u>Effect Monsters</u>|effect monsters =* [[Elemental Hero Bubbleman (anime)|Elemental HERO Bubbleman]]

* [[Bubble Blaster (anime)|Bubble Blaster]] (in hand)* [[Polymerization (anime)|Polymerization]]* [[Spark Blaster (anime)|Spark Blaster]]

* [[Hero Barrier (anime)|Hero Barrier]]

|effect monsters =<u>Effect Monsters</u>* ''[[Carboneddon (anime)|Carboneddon]]''* [[Hydrogeddon (anime)|Hydrogeddon]]x2* [[Oxygeddon (anime)|Oxygeddon]]* [[Water Dragon (anime)|Water Dragon]]<u>Ritual Monsters</u>|ritual monsters =* ''[[Litmus Doom Swordsman of (anime)|Litmus Doom LithmusSwordsman]]'' x2 <ref group=Notes name=search>This card can be seen when Bastion searches his Deck via the effect of "[[Hydrogeddon (while searching Deckanime)|Hydrogeddon]]".</ref>

* [[Bonding - H2O(anime)|Bonding - H20]]* [[Double Spell (later anime)|Double Spell]]* ''[[Living Fossil (anime)|Living Fossil]]''* [[Pot of Greed (anime)|Pot of Greed]] (while searching Deck)<ref group=Notes name=search></ref>

* ''[[Cursed Seal of the Forbidden Spell(anime)|Cursed Seal of the Forbidden Seal]]''

|normal monsters =<u>Normal Monsters</u>* [[Elemental Hero Avian (anime)|Elemental HERO Avian]]* [[Elemental Hero Burstinatrix (anime)|Elemental HERO Burstinatrix]]* [[Elemental Hero Clayman (anime)|Elemental HERO Clayman]]* [[Elemental Hero Sparkman (anime)|Elemental HERO Sparkman]]<u>Effect Monsters</u>|effect monsters =* [[Dark Catapulter (anime)|Dark Catapulter]]* [[Elemental Hero Bladedge (anime)|Elemental HERO Bladedge]]* [[Elemental Hero Bubbleman (anime)|Elemental HERO Bubbleman]]* [[Winged Kuriboh]]* [[Wroughtweiler (anime)|Wroughtweiler]]<u>Fusion Monsters</u>|fusion monsters =* [[Elemental Hero Flame Wingman (anime)|Elemental HERO Flame Wingman]]* [[Elemental Hero Rampart Blaster (anime)|Elemental HERO Rampart Blaster]] (Japanese only)* [[Elemental Hero Tempest (anime)|Elemental HERO Tempest]]* [[Elemental Hero Thunder Giant (anime)|Elemental HERO Thunder Giant]]

* [[Bubble Blaster (anime)|Bubble Blaster]]

* [[De-Fusion (anime)|De-Fusion]]* [[Emergency Provisions (later anime)|Emergency Provisions]]* [[Fusion Gate (anime)|Fusion Gate]]* [[Kishido Spirit (anime)|Kishido Spirit]]* [[Mirage of Nightmare (anime)|Mirage of Nightmare]]* [[Monster Reborn (anime)|Monster Reborn]]* [[Polymerization (anime)|Polymerization]]* [[Pot of Greed (anime)|Pot of Greed]]* [[Skyscraper (anime)|Skyscraper]]* [[Spark Blaster (anime)|Spark Blaster]]* [[The Warrior Returning Alive (anime)|The Warrior Returning Alive]]}} {{Decklist|traps Bastion's database|fusion monsters =* [[A Elemental Hero EmergesFlame Wingman (anime)|Elemental HERO Flame Wingman]] * [[Elemental Hero Thunder Giant (English onlyanime)|Elemental HERO Thunder Giant]]

|normal monsters =<u>Normal Monsters</u>* [[Blue-Eyes White Dragon (anime)|Blue-Eyes White Dragon]]

* [[Skyscraper (anime)|Skyscraper]]

* In both versions, when "[[Carboneddon (anime)|Carboneddon]]" is Summoned, [[Bastion Misawa|MisawaBastion]] places it on the [[Duel Disk]] in [[Attack Position]], despite having Summoned it in [[Defense Position]]. * When "[[Oxygeddon (anime)|Oxygeddon]]" is switched to Defense Position by "[[Spark Blaster (anime)|Spark Blaster]]", the read-out still shows its [[DEF]] value as its [[ATK]].