Uncanny X-Men Vol.1 #157
It's Imperial Guard vs. Imperial Guard as Kitty and Nightcrawler mount a desperate attempt to save the Earth from annihilation. Plus, can it be true, has the most dangerous force in all of creation - the Dark Phoenix - returned?!
Printed: May 1982
Writers: Chris Claremont
Art: Dave Cockrum and Bob Wiacek
Cover: Dave Cockrum and Bob Wiacek