The Uncanny X-Men
The Mandarin conditions Psylocke to serve as his assassin. Through Mojo's intervention, she is transformed into an Asian ninja with cybernetic eyes after a mind trip where she kills her fellow X-Men.
Collects The Uncanny X-Men #256-258, Psylocke #1-4. Psylocke transformation from British telepath to ninja warrior, plus her 2009 miniseries.
Collects The Uncanny X-Men #248-286, Classic X-Men #39, The X-Men Annual #1. Jim Lee iconic Uncanny X-Men artwork that defined the 90s X-Men aesthetic.
Collects The X-Men #49-53, X-Factor #15, 24, 25 and The Uncanny X-Men #256-258. Mutant milestones including Lorna Dane origin, early X-Factor, and Psylocke Siege Perilous transformation.
Collects Uncanny X-Men #244-269 and more. The first Claremont/Jim Lee omnibus -- Jubilees debut, the Siege Perilous era, and the X-Men in the Savage Land.
Collects Uncanny X-Men #248-267. The dissolution era -- the X-Men scattered through the Siege Perilous, believed dead, rebuilding from scratch.
Collects Uncanny X-Men #256-277 and X-Men #1-3. Jim Lee's iconic run that redefined the X-Men's visual identity in the early '90s.