Doomsday

Doomsday was a mutated Human-Kryptonian hybrid created by Lex Luthor from the corpse of General Zod and his own blood, in a long-forbidden ancient process, for the sole purpose of killing Superman. Though thought to be taken out he would comeback once more to help the Legion of Doom try to take down Black Spider and Superman, but he would later be destroyed by a kryptonite weapon used by Joker.