Uncanny X-Men Vol.1 #115
The deadly and creature who feeds off the life-essence of mutants Sauron has returned! However, something even more dangerous then the sinister reptilian threatens to rise in the Savage Land, and Ka-Zar needs the X-Men's help to stop it.
Printed: Nov 1978
Writers: Chris Claremont and John Byrne
Art: John Byrne and Terry Austin
Cover: John Byrne and Terry Austin