Essential X-Men, Volume 3 (Marvel Essentials)
Storm, Cyclops, Nightcrawler, Kitty Pryde, Colossus and Wolverine. Children of the atom, they are humanity's only hope in the face of evil: they are the uncanny X-Men! In this volume, Cyclops gets stranded on an island with Magneto, Kitty leaves the X-Men, the team saves Illyana Rasputin and the Dark Phoenix returns!
Collecting UNCANNY X-MEN #145-161, X-MEN ANNUAL #5-6 and AVENGERS ANNUAL #10.