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Mastermind
15 appearances in the database · 5 series
Marvel Klassik
#3
★ First appearance
Marvel Klassik #3
Jan 1998
Appearances
Marvel Klassik
(1998)
#3
Marvel DC Crossover
(1997)
#9
X-Men
(1997)
#22
#30
#9
Marvel History
(2004)
#[5]
#[8]
Marvel Origins
(2023)
#20
#29
#47
#51
#55
#57
#60
#69