Based on the DC Comics supervillian Composite Superman.
'One night, as Meach was sweeping in front of a series of statuettes depicting the Legion of Super-Heroes, a bolt of lightning passed through an open window and struck the display. The statuettes, which were actually miniature lifeless duplicates of the Legionnaires, unleashed an energy blast that struck Meach. Meach discovered that he was endowed with the combined powers of the Legion members. Determined to defeat Superman, Batman, and Robin, Meach used his shapeshifting power to turn his skin green and form a costume that was half Superman's, half Batman's. Calling himself Composite Superman.'