Amazing Spider-Man #326-329, Web of Spider-Man #59-61 and Spectacular Spider-Man #158-160 (1989-1990): Acts of Vengeance; Spidey is Captain Universe
Marvel Comics Presents #46-48 (1990): Sub-Mariner, Captain America, Arabian Knight, Wasp, Storm, Doom
Avengers #115-118; Defenders #7-11 (1973): Avengers/Defenders War; Loki goes insane; Black Knight is human again
FANTASTIC FOUR #5 (1962): 1st Doctor Doom, 1st Time Travel…And the Single Greatest Comic Book of All Time