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Metallo was an enemy of Superman and member of the Legion of Doom


Metallo is not entirely a mechanical being nor is he a robot. Cyborg is perhaps a better word. Metallo still has the brain of John Corben.

Corben was in a terrible accident, one that a scientist, anxious to experiment on a human possibilty beyond what the law would allow, took advantage of. Corben's brain was transplanted into a cybernetic body fueled by uranium. Perhaps the loss of his body was too much for him. Or maybe he was also inclined towards crime. Under the name Metallo, Corben became a criminal.

But it is not Corben's robotic strength that is a threat to Superman. In time, Corben found a better source of energy than uranium. At the heart of this robot criminal is a piece of Kryptonite, the only mineral capable of killing the last Kryptonian.[1]






Superman Villain(s)
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This character is or was primarily an enemy of Superman in any of his various incarnations, or members of the Superman Family. This template will categorize articles that include it into the "Superman Villains category."

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Legion of Doom member
This character is or was a member of the Legion of Doom, a team of supervillains culled together for the purpose of conquering the world and defeating the Super Friends, in any of its various incarnations. This template will categorize articles that include it into the "Legion of Doom members" category.

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