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