The X-Men
Jean breaks free from Mastermind's mental control and drives him insane for manipulating her mind. The psychic backlash causes Jean to snap and become Dark Phoenix.
Collects X-Men #132-141, Uncanny X-Men #142-153
Collects The X-Men #125-141, X-Men Annual #4, The Uncanny X-Men #142-143. Includes Proteus, Dark Phoenix Saga, and Days of Future Past — the definitive Claremont/Byrne run.
Collects Uncanny X-Men #129-138
Collects The X-Men #129-137.
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-Men #129-143 and Annuals. The essential Claremont/Byrne era: Dark Phoenix Saga and Days of Future Past in one volume.
Collects The X-Men #129-137. The Dark Phoenix Saga -- Claremont and Byrnes masterpiece that changed superhero comics forever.
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.