The Anti-Saïx is, as its name suggests, a doppelganger of Saïx. Its coat is completely black, including the zipper and pull strings. Its long hair and skin are both very dark-colored, and it carries a dark copy of the Lunatic claymore. Its eyes are glowing yellow circles, traits possessed by many Heartless. It is unclear if this being possesses Saïx's scar. Something resembles the scar, though, at the beginning of its battle right before it summons his weapon. It is a lighter color than Anti-Saïx's skin.