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