Classic X-Men
Lilandra transports the X-Men to her base to execute Phoenix for genocide, forcing Xavier to demand trial by combat on the Moon where Jean sacrifices herself to prevent Dark Phoenix from reemerging.
Collects X-Men #132-141, Uncanny X-Men #142-153
Collects Uncanny X-Men #129-138
Collects The X-Men #129-138, Classic X-Men #43. The original Dark Phoenix Saga — Jean Grey transformation and the X-Men desperate fight to save her.
Collects X-Factor #1 and Classic X-Men backup stories. The resurrection of Jean Grey and the founding of X-Factor by the original five X-Men.
Collects X-Factor #1; Classic X-Men #8, #43.
Collects Classic X-Men #35-43. Classic X-Men backup stories expanding on the Claremont/Byrne era.
Collects X-Factor #1-9 and material from 4 other series. The original X-Factor earliest issues - the five originals reunite plus Rise of Apocalypse.
Collects X-Factor #1-26, X-Factor Annual #1-2, Classic X-Men #8, 43. The original five X-Men reunite, featuring Angel's transformation into Archangel.
Collects Classic X-Men #1-43. Reprints of Uncanny X-Men with added backup stories expanding on classic Claremont tales.
Collects X-Men #129-137 and bonus material. The legendary Dark Phoenix Saga — Claremont and Byrne's masterpiece about Jean Grey's tragic fall.
Collects X-Men #97-138 and Classic X-Men backups. The definitive collection — from the Shi'ar saga through the complete Dark Phoenix Saga with bonus material.