Zexion

Zexion, the Cloaked Schemer (影歩む策士, Kageayumu Sakushi, lit. Shadow-Walking Schemer), is the Nobody of Ienzo, and Rank VI of Organization XIII. He weaves illusions to fight for him. Unlike the other Organization members, Zexion's weapon was originally unknown, and his talents were used only outside of normal combat. In Kingdom Hearts Re:Chain of Memories, Zexion's weapon was revealed to be a book called a Lexicon.