Amazing Spider-Man Vol 1 (1963) #274 Newsstand Edition
The Beyonder has run out of patience with the universe! And plans to wipe it from all existence! But before he can, Mephisto offers him a challenge...a mini-contest of champions!Spider-Man will be Mephisto's champion, and Zarathos (aka the Spirit of Vengeance) will be the Beyonder's! If the web-slinger wins the contest, the universe lives for another 24 hours! If Zarathos emerges triumphant, the universe ends at once!Over the skies of Manhattan, Zarathos attacks! And the battle for the life of the world begins! Even Mephisto is cheering for your friendly neighborhood Spider-Man!