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