Volume 1, #193. "Day Of The Death-Demon!"
Marvel Comics. April, 1978.
Writer(s): Len Wein, Keith Pollard, Bill Mantlo
Artist(s): Keith Pollard, Joe Sinnott, Francoise Mouly, Janice Cohen
Notes:
Appearance: Diablo, Darkoth, Wyatt Wingfoot
Cover Art: Keith Pollard, Joe Sinnott