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Mastermind was a member of Magneto's Brotherhood of Evil Mutants until Magneto was defeated by Juggernaut (Charles Xavier). Mastermind then joined Juggernaut's X-Men and helped him conqueror the world. After Cyclops attempted to rally the X-Men against Xavier's dystopian future, Mastermind left the meeting not wanting to see any changes.[1]

Powers

Seemingly those of Jason Wyngarde (Earth-616)#Powers.



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