Issue: #13
Amazing Adventures #11: "Lo! A Beast is Born" (March 1972). When Hank McCoy leaves the X-Men for a job at the Brand Corporation – where he’s permanently transformed into a furry monster while experimenting with his mutation!A blue-furred monster stalks a seemingly-decent security guard outside a genetic research lab. The "security guard" starts to break into the lab causing the monster to attack....
Creators: Dan Buckley, Joe Quesada, Tom Sutton, Chris Claremont, Gil Kane, Gerry Conway, Bill Everett, Dave Cockrum
Characters: Storm, Wolverine, Kitty Pryde, Angel, Beast, Colossus, Cyclops, Iceman, Jean Grey, Nightcrawler, Professor X, Bamf, Linda Donaldson, Magik, Carl Maddicks