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