Rao

Mister Mxyzptlk had lost. Clark had tricked him into writing his own name backward. According to the rules of the game, Mister Mxyzptlk had to leave Earth—rules he had established when he battled Golden Superman in the Fifth Dimension. Even on Earth in the main universe, he had to obey them. Otherwise, not only would Golden Superman come after him, but the troublemaking spectators of the Fifth-Dimensional court would step in and drag him back. "Don't get smug! I'll be back!!