Jean Paul Valley served as a replacement for Batman from the time Bruce Wayne broke his back until he recovered. He possesses uncommon strength and received combat training from Batman for a time. However, he is a schizophrenic [a mental disorder characterized by a separation between the thought processes and the emotions, a distortion of reality accompanied by delusions and hallucinations, a fragmentation of the personality, motor disturbances, bizarre behavior, etc.] and can be unstable at times.

noun

Jewish and Islamic Folklore - the angel who parts the soul from the body at the moment of death

Angel
Archangel
Batman