Page "Mister Mxyzptlk" Paragraph 21

In Emperor Joker, a multipart story throughout the Superman titles, Mxyzptlk has his powers temporarily stolen by the Joker ; interested in seeing how somebody else would do at his job, Mxyzptlk intends to give the Joker only 1 % of his power.

However, the Joker tricks Mxyzptlk into revealing his secret imp name and thus acquires 99. 9 % of Mxyzptlk's power, leaving him mostly powerless while the Joker remakes Earth in 69 seconds to suit his own vision.

The imp is also unable to remember what to do to break the chain of events that daily culminates with Superman being dragged back to Arkham Asylum by Bizarro.

Fortunately, Mxyzptlk is able to reveal the truth about the world to Superman, who, despite his current lack of faith in himself — caused mainly by the fact that not even Lois Lane believes in him in this world — manages to find the power to break the cycle and defeat the Joker.

As the Joker prepares to end existence, Superman realizes that, for all his power, the Joker still cannot erase Batman, as the Joker defines himself by his constant opposition to the Dark Knight, allowing Superman to shatter the Joker's control of reality.

However, Mxyzptlk saves some of the Joker's creations and transfers them into the ' real ' world, including Scorch, Gorgeous Gilly, the new Bizarro and " Ignition ", a black-armored villain who first appeared in the Emperor Joker story but was created by someone else ( exactly who has never been revealed ).