Uncanny X-Men (1963) #247
The Sentinels, including Master Mold, are creating quite a few issues for the X-team. An epic battle ensues that threatens the stability of the team. It's Mutant versus Sentinel...and the outcome will surprise you.
Published: 8/1/1989
- Chris Claremont, writer
- Dan Green, inker
- Glynis Oliver, colorist
- Tom Orzechowski, letterer
- Marc Silvestri, penciler