On earth Leon was a normal superhero, he is acutally a god along with Warren. He used to control animal life and animal kind. Leon later was in a war with Warren and Zeus stripped them of their powers and where made mortal. They lost all memories of there powers, and every time they died Zeus would bring them back with new memories to bring them up to this point. Leon controls the lion animal spirit, King of the Jungle. Giving him the powers to change into a lion.