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