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