The New Mutants Annual
Mojo captures Betsy (giving her cybernetic eyes and the name Psylocke), Wolfsbane, Sunspot, Karma's siblings, and the Bratpack. The team meets Captain Britain and Cypher merges with Warlock to save the day, with Psylocke deciding to stay at Xavier's school.
Collects The New Mutants Annual #2, The New Mutants #41-47, X-Men Annual #10. Includes the classic Asgardian Wars crossover with X-Men Annual #10.
Collects New Mutants #35-54, Annuals, Fallen Angels #1-8, and specials. The Asgardian Wars, Fallen Angels, and the teams continued growth under Claremont.
Collects Uncanny X-Men #188-218, Longshot #1-6, Nightcrawler #1-4, and Annuals. Claremonts mid-80s peak -- Nimrod, the Mutant Massacre prologue, and the Longshot/Nightcrawler limited series.
Collects New Mutants #35-54, Annuals, and Special Edition. The Asgardian Wars, the Beyonder saga, and the teams growth under Claremont.
Collects X-Men Annual #3, 10, X-Men: The Dark Phoenix Saga, The New Mutants Annual #2, X-Men: The Asgardian Wars, The Uncanny X-Men: From the Ashes..., The Uncanny X-Men Annual #17, X-Cutioner's Song, X-Men: Fatal Attractions, Rogue, X-Men: Mutant Genesis...