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