sentences:  Shimmer), also a founding member of the Fearsome Five.A towering hulk of a man with immense physical strength and durability, Mammoth is intellectually and emotionally underdeveloped (so much so that he was once tricked into surrendering to a Superman whose powers had recently been lost thanks to Lex Luthor's use of Mister Mxyzptlk's red kryptonite thanks to Superman simply faking confidence that he could defeat Mammoth), and he lacks skill as a hand-to-hand combatant.Mammoth at one point retired to a Tibetan monastery along with his sister although shortly thereafter discovered Psimon (himself a former member of the Fearsome Five).