| Xanithium | |
|---|---|
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User |
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creator |
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Timeframe |
31st century |
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First Appearance |
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History[]
In the 31st century, Xanithium is a mineral that is mined from the planet Braal and processed on the outer Venus Moon. As part of a plan to lure the Legion of Superheroes into a trap, Grimbor planted Xanithium residue on Nemesis Kid.