Devil Hand

Azel also know as Devil Hand, is the tertiary antagonist turned secondary antagonist, he is a sub-boss turned one of the 2 final bosses of the video-game, God Hand.

History
Azel was member of The Clan but he betrayed them, just to obtain the God Hand, a powerful weapon.

He later joins the Four Devas, a group of 4 servants of a powerful demon called Angra who is Satan himself, during the invasion in The Kilo-Crab, Azel then tries to kill a man named Gene also know as God Hand, he is the one who has the other hand, Azel fails.

When Gene kills Belze(the leader of the group), Azel tries to revive Angra in the tower, leading to a second and final fight between Gene and Azel, Azel succeeds in reviving Angra but is killed when he discovers that Angra was inside of him all time.

Trivia

 * He is actually the most powerful member of the Four Devas, even if Belze is the leader.