Do you want to compare Mephisto with Mastermind? Discover the powers, weakness & weapons of Mephisto and Mastermind from Mephisto Biography and Mastermind Biography. Find out all about Mephisto and Mastermind.# Check out how is Mephisto unique and distinct from Mastermind. Discover their love interest, sidekicks, family tree and the movies and games list in which Mephisto and Mastermind have appeared. Find out everything about them here!