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