DC Database
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The Joker was the former archenemy of Batman. In the aftermath of the nuclear war that destroyed Earth, Joker regained his sanity and joined a community of surviving superheroes and supervillains.

After Clark Kent joined the community, it began to thrive. Joker did his part by building an electrical generator.

Along with everyone else, he died when Earth was entirely destroyed by Captain Marvel's lightning.[1]


Abilities

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Footnotes


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