Kaibaman also known as Ally of Justice Kaibaman in the Japanese version is a Duel Monster Spirit based on the character Seto Kaiba who appears in Yu-Gi-Oh! GX.
He enters a rivality with Jaden Yuki by summoning the Blue-Eyes White Dragons and easily won the match.
He also have Seto Kaiba's voice similiar that how Kaiba and Kaibaman share their same voice in English and Japanese version respectively.
He first appeared in episode 34 The Fear Factor where he introduces himself, he owns three copy of Blue-Eyes White Dragons similiar to Seto Kaiba's dragons himself, he wants to prove to Jaden Yuki that he is better than him, he then fuses his three Blue-Eyes into Blue-Eyes Ultimate Dragon, then Jaden forces his Elemental Hero to attack the Ultimate Dragon, but Kaibaman is able to activate De-Fusion to send his Ultimate Dragon back to the Extra Deck to revive his three Blue-Eyes from his respective graveyard.
He is voiced by Eric Stuart who also voiced Seto Kaiba from Yu-Gi-Oh!
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