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