The Metal Master, AKA, Molyb is a Marvel Comics villain and an enemy of The Hulk.
Metal Master's origins is currently unknown. He comes from the planet Astra that is ruled by a theocracy. Molyb claims that he was judged to be a criminal and was exiled from the planet Astra for wishing to conquer all. The Sentence was "For time beyond measure." Due to the exile, Molyb searched the galaxy until he could find a planet rich in metallic elements, which he could rule.