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