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