When Maxima went to Earth with Superman, De'Cine used this chance to usurp the throne. He even seduced Sazu into helping him. De'Cine had Superman and Maxima locked in the catacombs. He even sent Sazu down below when he believed she outlived her usefulness. Superman and Maxima confronted him in the throne room and defeated his guards. Maxima defeats De'Cine but he was spared from death by Superman. Instead, Maxima sentenced him to life imprisonment.