AntiSora

AntiSora is a Pureblood Heartless that appears as a sub-boss in Kingdom Hearts. It appears to be a dark clone of Sora, its entire body coloured in the same inky black as other Heartless. It has glowing yellow eyes and even wields a shadow version of the Keyblade.

History
While searching for Kairi aboard Captain Hook's ship, Sora, Donald and Goofy encounter Riku. Having grown resentful of Sora thanks to Maleficent's influence, Riku demonstrates his new ability to control the Heartless, conjuring several Shadow Soras and casting Sora and co. into the ship's brig. Sora's party fight their way up to the ship's main deck, encountering the Shadow Soras along the way which all seem to disappear before Sora can destroy them with the Keyblade. However, one last replica - AntiSora - appears in Captain Hook's cabin and fights back using its own Keyblade. After a brief battle, Sora defeats AntiSora and heads up to the main deck.

Abilities
As a copy of Sora, AntiSora shares many of Sora's basic Keyblade attacks. However, it cannot perform limit commands or use magic abilities like Blizzard, Fire or Thunder. It relies on cunning and trickery in combat, using dodge rolls to evade attacks or melting into shadow and creeping along the floor, safe from attack while sneaking up behind Sora to strike him. AntiSora can also create replicas of itself to confuse Sora. While Sora cannot hit the replicas, the replicas can hit him.