Batman #368 VF/NM (9.0)
Jason Todd officially becomes Robin! Batman and Robin cover and story
DC Comics Presents #47 CGC 9.6
1st appearance of the He-Man and the Masters of the Universe and Skeletor! Superman & He-Man vs. Skeletor
Amazing Spider-Man Annual #16 CGC 9.6
1st appearance of Monica Rambeau, one of the Captain Marvels, Spider-man and the Avengers cover and story, white pages
Spider-man vs. Wolverine #1 CGC 9.8
1st appearance of Charlemagne, Death of Ned Leeds (the Hobgoblin), Spider-man vs. Wolverine cover and story
Amazing Spider-Man #238 (Newsstand edition) CGC 9.2
1st appearance of the Hobgoblin! Spider-man vs Hobgoblin cover and story, Newsstand edition
Marvel Team-Up #141 (Newsstand edition) CGC 9.4
1st Alien Symbiote which later becomes Venom, same week as Amazing Spider-man #252, Spider-man, Daredevil, and Black Widow cover and story
Black Panther #2 CGC 9.6
1st appearance of Shuri, Black Panther cover and story
Amazing Spider-Man #238 CGC 8.0
1st appearance of the Hobgoblin! Spider-man vs Hobgoblin cover and story
X-Men #221 (Newsstand edition) CGC 9.6
1st appearance of Mr. Sinister, Havok vs. Wolverine cover, X-Men vs Marauders story
X-Men #266 CGC 9.6
1st appearance of Gambit! X-Men and Storm cover and story, Chris Claremont story
Avengers #257 CGC 9.6
1st appearance of Nebula, who appears in both the Infinity Gauntlet, and the Marvel movies, Guardians of the Galaxy, and Avengers Infinity War and Avengers Endgame, Avengers cover and story
Uncanny X-Men #212 (Newsstand edition) VF+ (8.5)
1st Wolverine vs Sabretooth battle, X-Men vs Marauders story
Uncanny X-Men #213 VF (8.0)
Classic Wolverine vs Sabretooth cover by Alan Davis, X-Men vs Marauders story, Psylocke joins the team
X-Men #201 CGC 9.8
Highest Certified1st appearance of Nathan Summers (as a baby) who later becomes Cable!
Tales of the Teen Titans #44 CGC 9.4
1st appearance of Nightwing and Jericho! Origin of Deathstroke!
G.I. Joe, A Real American Hero #5 (Newsstand edition) CGC 9.8
G.I. Joe cover and story
Amazing Spider-Man #299 CGC 9.8
1st cameo appearance of Venom (full page)! Spider-man cover and story with Todd McFarlane art
G.I. Joe, A Real American Hero #4 (Newsstand edition) CGC 9.8
G.I. Joe cover and story
Punisher Limited Series #1 (Newsstand edition) CGC 9.4
First issue of the Punisher's first solo series! Mike Zeck cover and art, Punisher cover and story