Issue: #17 B
Somebody might want to check on whether hell has just frozen over, because guess what...? Deadpool has just joined the X-Men!
Creators: Alan Fine, Axel Alonso, Dan Buckley, Joe Quesada, Joe Sabino, Juan Vlasco, Paco Medina, Jason Pearson, Jody LeHeup, Daniel Way, Marte Gracia
Characters: Deadpool, Norman Osborn, Wolverine, Domino, Cyclops, Emma Frost, Bullseye, Mercury, Hellion, Prodigy, Mark Kincaid, Rockslide
Story arcs: Dark Reign, Nation X, Want You To Want Me