History Sandbox / MagnificentBastardYuGiOh

* ''VideoGame/YuGiOhTheFalseboundKingdom'': Seto Kaiba is the CEO of Kaiba Corp and targeted by Scott to be drawn into the game. Initially acting as [[TheDragon head of Haysheen's guards]], Kaiba puts down rebellions against his rule but has no interest in actually being loyal to a virtual simulation. When he comes across Joey Wheeler and his Black Dragon Gang, Kaiba goads him into confronting him so his forces can destroy their headquarters, and [[AdaptationalNiceGuy actually acknowledges Joey's ability]] when he beats Kaiba. After Marthis frames Kaiba as a collaborator with the resistance, Kaiba [[HeelFaceTurn goes rogue]] and takes command of Pegasus' rebellion for real, and leads them to victory after victory. In his campaign he eventually leads a coalition of marshals to the core of Scott's virtual world and destroys it.

-->-- '''Maximillion Pegasus''', [[Anime/YuGiOh Manga]]

* "[[TheCracker Revolver]]", real name Ryoken Kogami, is the leader of [[Characters/YuGiOhVRAINSKnightsOfHanoi the Knights of Hanoi]] one of Link VRAINS' best duelists. After his father, Dr. Kiyoshi Kogami was put on life support, Revolver swore to eliminate the Ignis in his name, believing their existence to be a threat to humanity. Combining new cards with older Trap Cards, Revolver holds his own against several opponents, only losing through foul play or his opponents being even better. After being defeated by Yusaku Fujiki in the climax of season 1, he returns to form an EnemyMine with the heroes and sets his sights on [[ArcVillain Bohman]]'s faction. During his duel with Soulburner, he gives him advice on how to move on from his trauma and faces his eventual defeat with dignity. In the end, Revolver and the Knights of Hanoi [[HeelFaceTurn reform]] and decide to safeguard Link VRAINS, with him giving Yusaku a card to use in the final battle.

* [[LargeAndInCharge Jose/Jakob]] is the leader of The Three Emperors of Yliaster. Manifested from the despair Aporia felt due to feeling alone, Jose works alongside Placido and Luciano to [[WellIntentionedExtremist prevent the future apocalypse]]. Manipulating the events that caused Zero Reverse in order to stop the creation of Ener-D, upon its faliure, Jose decides to summon Ark Cradle to have it [[ColonyDrop crash onto Neo Domino City]]. Jose gathers duel energy to summon Ark Cradle by having Jack duel an impostor that framed him for crimes, and by organizing the WRGP tournament, constantly adapting to the insubordination from Placido along the way. Later having the three enter the tournament directly by altering time to cover Yliaster's tracks, Jose has Placido and Luciano [[FailureGambit deliberately lose in their duel]] against Team 5D's in order to boost his life points as well as the power of his ace monster to nigh-unstoppable levels.

-->-- '''Maximillion Pegasus''', ''Anime/YuGiOh''

* [[LargeAndInCharge Jose/Jakob]] is the leader of The Three Emperors of Yliaster. Manifested from the despair Aporia felt due to feeling alone, Jose works alongside Placido/Primo and Luciano/Lester to [[WellIntentionedExtremist prevent the future apocalypse]]. Manipulating the events that caused Zero Reverse in order to stop the creation of Ener-D, upon its faliure, Jose decides to summon Ark Cradle to have it [[ColonyDrop crash onto Neo Domino City]]. Jose gathers duel energy to summon Ark Cradle by having Jack duel an impostor that framed him for crimes, and by organizing the WRGP tournament, constantly adapting to the insubordination from Placido along the way. Later having the three enter the tournament directly by altering time to cover Yliaster's tracks, Jose has Luciano and Placido [[FailureGambit deliberately lose in their duel]] against Team 5D's in order to boost his life points as well as the power of his ace monster to nigh-unstoppable levels.

* [[LargeAndInCharge Jakob]] is the leader of The Three Emperors of Yliaster. Manifested from the despair Aporia felt due to feeling alone, Jakob works alongside Primo and Lester to [[WellIntentionedExtremist prevent the future apocalypse]]. Manipulating the events that caused Zero Reverse to stop the creation of Ener-D, upon its faliure, Jakob decides to summon Ark Cradle to have it [[ColonyDrop crash onto Neo Domino City]]. Jakob gathers duel energy to summon Ark Cradle by having Jack duel an impostor that framed him for crimes, and by organizing the WRGP tournament, constantly adapting to the insubordination from Primo along the way. Later having the three enter the tournament directly by altering time to cover Yliaster's tracks, Jakob has Lester and Primo [[FailureGambit deliberately lose in their duel]] against Team 5Ds in order to boost his life points as well as the power of his ace monster to nigh-unstoppable levels.

* Sartorius is the head of the [[{{Cult}} Society of Light]], corrupted to evil by the Light of Destruction. Born with the power to see the future, he seeks out promising duelists with the power to defy fate and turn them to his cause so they can't stand in his way and derail his plans. He does this through a combination of lectures and brainwashing, telling his victims that only he can help them get what they want, convincing them they ''[[MoreThanMindControl want]]'' to join the Society. Through these methods he takes over the top dorm of Duel Academy, makes all of its students his loyal followers, and plans to use a KillSat to destroy the world ([[{{Bowdlerise}} mind control humanity]] in the English dub) in the name of cleansing, purifying light. Collected, affable, soft-spoken, and using his prediction powers to stay ahead of the game, Sartorius proves himself the most charismatic and intelligent enemy Jaden and his friends ever faced.
* Yubel is a demonic Duel Spirit and the mastermind behind the seeming main villain of Season 3, Professor Viper. Making a deal with Viper to revive his dead son in exchange for gathering Duel Energy to regenerate her body, she disposes of Viper and transports Duel Academy to another dimension to continue her plans herself, possessing the body of student Marcel as a host. She orchestrates Jaden's horrific TraumaCongaLine in order to awaken his dormant alter-ego, the Supreme King, so Jaden can complete the Super Polymerization card and then she can take it for herself and use it to fuse the twelve dimensions into one. Due to [[ReincarnationRomance being in love with Jaden's alter-ego in his past life]], Yubel was willing do anything to rule over the multiverse with Jaden and keep him all to herself.

* [[GodhoodSeeker Rex Godwin]] is the head of Security and a member of [[MysteryCult the secret society of Iliaster]]. He rose to this position after being stranded and forgotten in the slum of Satellite, and has single-handedly turned Neo Domino City into a classist technological utopia under his control. Using his power he begins gathering the prophecied "Signers" and awakening their powers, then presents himself to them as a mentor and benefactor who would aid them in their war against the Dark Signers led by [[CainAndAbel his brother Rudger]]. However, Rex is playing both groups against each other to make his own play for power, allowing Roman to kill him so he can become a Dark Signer, and then using Roman's severed arm bearing his Signer Mark to make himself a Signer. Transforming himself into a YinYangBomb with the power of both groups, Godwin seeks to destroy the world and remake it in his image, and almost succeeded if not for ThePowerOfFriendship overriding his willpower to force the Signer marks to obey him.
* [[LargeAndInCharge Jakob]] is the leader of The Three Emperors of Yliaster. Manifested from the despair Aporia felt due to feeling alone, Jakob works alongside Primo and Lester to [[WellIntentionedExtremist prevent the future apocalypse]]. Manipulating the events that caused Zero Reverse to stop the creation of Ener-D, upon it's faliure, Jakob decides to summon Ark Cradle to have it [[ColonyDrop crash onto Neo Domino City]]. Jakob gathers duel energy to summon Ark Cradle by having Jack duel an impostor that framed him for crimes, and by organizing the WRGP tournament, constantly adapting to the insubordination from Primo along the way. Later having the three enter the tournament directly by altering time to cover Yliaster's tracks, Jakob has Lester and Primo [[FailureGambit deliberately lose in their duel]] against Team 5Ds in order to boost his life points as well as the power of his ace monster to nigh-unstoppable levels.

* [[WoobieDestroyerOfWorlds Thief King Bakura]], the original incarnation of [[GreaterScopeVillain Dark Bakura]], wished vengeance upon the Egyptian royal family and the High Priests for the slaughter of his village, Kul Elna, to create the Millennium Items. Bakura makes himself known by ransacking late Pharoah Akhenamkhamen's tomb and marching into the royal palace with his body, dumping it in front of Pharoah Atem and the Priests, and successfully escaping. When Priest Mahado later attemptse to corner and fight Bakura within a tomb, Bakura barely survives the former's sacrifice and makes off with his Millennium Ring. Later on, Bakura attacks Priest Akhenaden and corrupts him by sealing a part of his soul into the Millennium Eye before battling and successfully defeating Atem while fleeing from the other Priests. Even after being cornered and defeated in Kul Elna, Bakura's corruption of Akhenaden ensured that the plan of summoning [[GodOfEvil Zorc Necrophades]] comes to pass.

* [[DoubleAgent Lyman Banner]], also known as Amnael, is the last of the Shadow Riders sent to defeat the heroes and awaken the Three Sacred Beasts. After contracting a disease that's slowly killing him, Banner uses his knowledge of alchemy to create artificial bodies for the sake of prolonging his life. Posing as the headmaster of the Slifer Red dorm, he manages to avoid suspicion while supplying information to his leader, Kagemaru. Once it becomes time to engage the heroes, Banner easily defeats Chazz, Alexis, and Atticus while giving Jaden Yuki [[ClimaxBoss his closest victory yet]]. Upon being defeated, [[RedemptionEqualsDeath Banner gives Jaden a card to help him defeat Kagemaru]] before being reduced to a spirit.

* [[WoobieDestroyerOfWorlds Thief King Bakura]], the original incarnation of [[OverarchingVillain Dark Bakura]], wished vengeance upon the Egyptian royal family and the High Priests for the slaughter of his village, Kul Elna, to create the Millennium Items. Bakura makes himself known by ransacking late Pharoah Akhenamkhamen's tomb and marching into the royal palace with his body, dumping it in front of Pharoah Atem and the Priests, and successfully escaping. When Priest Mahado later attemptse to corner and fight Bakura within a tomb, Bakura barely survives the former's sacrifice and makes off with his Millennium Ring. Later on, Bakura attacks Priest Akhenaden and corrupts him by sealing a part of his soul into the Millennium Eye before battling and successfully defeating Atem while fleeing from the other Priests. Even after being cornered and defeated in Kul Elna, Bakura's corruption of Akhenaden ensured that the plan of summoning [[GodOfEvil Zorc Necrophades]] comes to pass.

* [[WellIntentionedExtremist Nasch]], formerly known as [[RivalTurnedEvil Ryoga "Shark" Kamishiro]], reassumes his identity after regaining his memories. Wanting to protect the Barian World at all costs, he leads the Barian Emperors' assault to wipe out Yuma and his friends. After getting caught in Vector's snaring trap and witnessing the deaths of Durbe and Merag, Nasch breaks free and defeats Vector, [[XanatosSpeedChess surpassing the latter's many tricks]]. Nasch teams up with Yuma shortly afterwards to defeat a common enemy in Don Thousand, being granted the latter's powers after they win. He then uses those powers to engage Yuma and Astral in one of the franchise's most climactic showdowns, only losing due to circumstances that he couldn't have known about. Never letting go of [[TrueCompanions his reasons to fight]], Nasch says goodbye to Yuma and Astral before dying, calling them his two best friends.

* [[SuperPoweredAlterEgo Dark Yugi]] is the resurrected spirit of [[TheGoodKing Pharaoh Atem]], inhabiting the body of [[NiceGuy Yugi Mutou]] after he solves the Millennium Puzzle and proving to be an intelligent gamer unlike any other. Whenever Yugi and his friends are put in danger or antagonized, Dark Yugi takes over, challenging the apprehender to a Shadow Game where the opponent's true character emerges and is judged. Upon winning or the opponent cheating, Dark Yugi usually enacts a Penalty Game that results in MindRape and/or occasionally death. Even when opponents like Shadi, Seto Kaiba, and Dark Bakura try to turn the tables, Dark Yugi wins any challenge they threw at him, even using his Mind Crush on Kaiba, leaving him comatose, to clear the evil from his heart. Invited to Duelist Kingdom by Pegasus, Dark Yugi's pride and philosophy are constantly challenged, and after defeating Pegasus, he decides to focus more on finding out the secrets of his past rather than dealing Shadow Games. A skilled duelist and gamer throughout the entire series who desires to protect Yugi and his friends and showing respect toward worthy duelists and gamers, Dark Yugi [[GracefulLoser accepts his final loss, against Yugi himself, with grace]] before leaving for the afterlife.

* [[SuperPoweredEvilSide Dark Yugi]], the spirit of the Millennium Puzzle inhabiting [[NiceGuy Yugi Muto]], proves once again to be a smart and manipulative gamer. Challenging bullies and other threats to Shadow Games, Dark Yugi exposes their true character before using his Penalty Games to MindRape them into submission. Dark Yugi also shows a sense of mercy sparing opponents that he felt were worthy or kind enough after their defeats. In spite of constant challenges from opponents such as Seto Kaiba and his various henchmen, Dark Yugi prevails through their games, eventually resulting in him Mind Crushing Kaiba to free him of his darkness.

** [[TheRival Seto Kaiba]] is determined to resurrect the Pharaoh by any means necessary, developing highly complex technology in his attempts. When he excavates the Millennium Puzzle, Diva attempts to kill him with the Quantum Cube, but Kaiba repels the attack without effort. Kaiba turns the ensuing duel around by summoning Obelisk the Tormentor, and while Diva escapes, he's unworried. When Kaiba learns Diva stole two of the Puzzle pieces, he kidnaps him and agrees to Yugi's demand to duel Diva at an exhibition. He only briefly loses composure when Yugi reassembles the Puzzle to confirm the Pharaoh cannot return, and his reaction to seemingly losing their duel is a smirk. When Diva returns as a corrupted monster, Kaiba sacrifices himself to keep Yugi in the game, imploring him to call the Pharaoh. The Pharaoh returns and saves everyone, taking the Puzzle with him to the afterlife. Kaiba decides to follow him there, using the Quantum Cube and his own technology to breach through to the afterlife, prepared to duel. Throughout the movie, Kaiba is in control and weathers any setbacks to succeed in getting what he wants.

* Movie: [[TheRival Seto Kaiba]] proves himself to be Yugi's greatest opponent, setting up a Duel Monsters gaming center to attract duelists and their rare cards. Upon learning of Shougo Aoyama's Red Eyes Black Dragon, Kaiba sets up a mandatory tournament in order to claim the card for himself. Sending his goons to first kidnap Shougo and then to steal the Red Eyes, Kaiba takes Yugi's Millennium Puzzle as a hostage in order to lure his rival into confrontation. Unveiling his new virtual reality system, Kaiba almost defeats Yugi through his brilliant strategies, and upon losing, [[GracefulLoser accepts his defeat]].

* ''VideoGame/YuGiOhForbiddenMemories'': Priest Seto, the Egyptian version of Seto Kaiba, started out as a minion of [[BigBad Heishin]] and subdues Prince Atem for his boss to murder both the Pharaoh and his wife. Giving the Millennium Items to Heishin's guards, Seto intends on manipulating the vengeful prince to defeat and claim them, only for Seto himself planning to defeat the prince and take them for himself. Planning on betraying Heishin to conquer Egypt for himself with the use of [=DarkNite=], Seto gives the prince hints to stop [=DarkNite=] when it turns them both into cards, never losing his charm or ability to adapt through all the challenges he faces.
* ''VideoGame/YuGiOhTheDuelistsOfTheRoses'': C. Seto Rosenkreuz, leader of the Yorkists, is a brilliant tactician who aims to combine his army's White Rose Cards with the enemy Lancastrian's Red Rose Cards to summon a godly being and rule the world for eternity. When the Rose Duelist is summoned to aid the Lancastrians, Seto presents them with a compelling argument to join his forces and calmly works in the Rose Duelist's decision, regardless of whether or not they take him up on his offer. Dismantling the Lancastrian forces if the Duelist joins the Yorkists, Seto succeeds in his goals to summon a spirit but instructs the Duelist on how to return it, realizing it is not the one he seeks. If they side with the Lancastrians, Seto summons the spirit even after they best him in a duel, and escapes once it's beaten as well. Seto continues seeking the true Card Guardian, honoring his promise to send the Duelist home and remains the single most intelligent, charismatic character regardless of which campaign the player chooses.

* ''VideoGame/YuGiOhForbiddenMemories'': Priest Seto, the Egyptian version of Seto Kaiba, started out as a minion of BigBad Heishin and subdues Prince Atem for his boss to murder both the Pharaoh and his wife. Giving the Millennium Items to Heishin's guards, Seto intends on manipulating the vengeful prince to defeat and claim them, only for Seto himself planning to defeat the prince and take them for himself. Planning on betraying Heishin to conquer Egypt for himself with the use of [=DarkNite=], Seto gives the prince hints to stop [=DarkNite=] when it turns them both into cards, never losing his charm or ability to adapt through all the challenges he faces.