Uncanny X-Men: Defeated by Dark Phoenix

Chris Claremont and John Byrne

Uncanny X-Men #129
Uncanny X-Men #130
Uncanny X-Men #131
Uncanny X-Men #132
Uncanny X-Men #133
Uncanny X-Men #134
Uncanny X-Men #135
Uncanny X-Men #136
Uncanny X-Men #137
Uncanny X-Men #138
Uncanny X-Men Annual #4
Uncanny X-Men #139
Uncanny X-Men #140
Uncanny X-Men #141
Uncanny X-Men #142
Uncanny X-Men #143
Marvel Team-Up #100
Phoenix: The Untold Story #1