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