Action Comics #418

In "The Attack of the Phantom Super-Foes!", Superman attempts a bold peace treaty with four of his most dangerous adversaries—only to be betrayed when shadowy duplicates of himself appear, wreaking havoc across the city. As the villains point the finger, Superman must confront a chilling mystery: every time he uses his powers, the phantom duplicates grow stronger, turning the very strength meant to protect into a weapon of chaos.