2nd Appearance
ACE edition reprint produced by Wizard. Acetate cover. Second team appearance of the X-Men that debuted in Giant-Size X-Men #1. Second appearance of Storm, Nightcrawler, Colossus, Thunderbird. Fourth appearance of Wolverine.
Awesome Covers
Variant featuring Storm, with special anniversary border to commemorate Marvel's 70th year of comics.
2nd Appearance
Marvel Milestones Edition reprint. First appearance of Storm, Nightcrawler, Colossus, Thunderbird. First appearance of Illyana Rasputin as a child. First appearance of Krakoa. Second appearance of Wolverine. First use of "snikt" sound effect.
Awesome Covers
Wedding of Black Panther and Storm. Civil War cease-fire. Cover by Frank Cho.