Low $125
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Mid $400
 | 
High $1k
  • 1st team appearance of the new X-Men: Storm, Nightcrawler, Colossus, Thunderbird and Wolverine
  • 1st appearance of Nightcrawler
  • 1st appearance of Thunderbird (John Proudstar)
  • 1st appearance of Storm, the world's first female, black super-powered hero
  • 2nd appearance of Wolverine and the 1st time "snikt" appears
  • 1st cameo appearance of Illyana Rasputin, becomes Magik
  • 1st appearance of Colossus
  • 1st appearance of the living island, Krakoa
Details
Publisher Marvel
Published May 1975
Written By Len Wein
Illustrated By Dave Cockrum