Uncanny X-Men #164 (9.4)

Title: Uncanny X-Men 
Issue: #164
Publisher: Marvel
Year: 12/1982
Grade: NM (9.4)

1st appearance of Ms. Marvel, Carol Danvers as Binary

The X-Men continue their escape from the Brood but begin to feel the effects of the Brood spawn inside of them. Carol becomes Binary.