Anything can happen in WHAT IF? - and this is the Omnibus to prove it! Imaginative creators line up to explore alternate possibilities in unexpected ways - featuring amazing, incredible and uncanny variants of all your favorite heroes! Ask yourself the important questions: What if the alien costume possessed Spider-Man? What if the new X-Men died on their first mission? What if the Fantastic Four all had the same power?! Plus: Professor X becomes the Juggernaut, Wolverine is an agent of S.H.I.E. ...