*Which villains have proved to be Superman's greatest enemies? Those closest to the Man of Steel might have differing opinions - but there is little doubt that Lex Luthor's name would head everyone's list! Before his "death," he labored endlessly - both solo and in tandem with such menaces as Mr. Mxyzptlk and Brainiac - to bring Superman to his knees! He may be gone, but Luthor's lurking evil lives on...in the body of Luthor II! *Source: Back of Card