Saïx, the Luna Diviner (月に舞う魔人 Tsuki ni Mau Majin?, lit. Demon Dancing in the Moon), is the Nobody of Isa, Rank VII of Organization XIII, and Rank VIII of the real Organization XIII. He derives power from the Moon, and uses this power to enter a berserk rage where he mercilessly attacks opponents with his massive claymore. He commands the Berserker Nobodies. Saïx is one of the overarching villains of Kingdom Hearts: Chain of Memories, the secondary villain in Kingdom Hearts II and the main villain of Kingdom Hearts 358/2 Days, acting as the second-in-command to Xemnas, and later returns as a member of the real Organization XIII in Kingdom Hearts 3D: Dream Drop Distance and Kingdom Hearts III. Along with all other Organization members in Kingdom Hearts 358/2 Days, Saïx is a playable character in Mission Mode.