Published April 1, 1978
writer Chris Claremont
penciler Dave Cockrum
While the X-Men try to relax and play a game of baseball, Warhawk enters the Danger Room to wreak havoc.
Uncanny X-Men (1963) #1
Sep 1963
Uncanny X-Men (1963) #2
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Uncanny X-Men (1963) #3
Jan 1964
Uncanny X-Men (1963) #4
Mar 1964
Uncanny X-Men (1963) #5
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Uncanny X-Men (1963) #6
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