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