Iceman

Giant-Size X-Men (1975) #1

First Appearance: Storm, Colossus, Thunderbird, Nightcrawler (all join X-Men)

The issue that relaunched the X-Men franchise. Introduces the new international team including Wolverine, Storm, Colossus, Nightcrawler, and Thunderbird. Written by Len Wein with art by Dave Cockrum. One of the most valuable Bronze Age keys.

Fantastic Four (1961) #1

First Appearance: Fantastic Four (Reed Richards, Sue Storm, Johnny Storm, Ben Grimm)

The first issue of the Fantastic Four — and the comic that launched the Marvel Age. Stan Lee and Jack Kirby introduced the world to Marvel's First Family: Mr. Fantastic, the Invisible Girl, the Human Torch, and the Thing. One of the most significant and valuable comics in existence. Near-mint copies have sold for over $300,000.

Civil War (2006) #1 (Turner Variant)

Michael Turner variant cover of Civil War #1, the opening issue of Marvel's landmark 2006 event by Mark Millar and Steve McNiven.

X-Factor (1986) #5

First Appearance: Apocalypse (En Sabah Nur) — cameo

First cameo appearance of Apocalypse, the immortal mutant conqueror who would become one of the X-Men's greatest enemies. A key Bronze Age issue marking the debut of one of Marvel's most powerful villains.

X-Factor (1986) #24

First Appearance: Apocalypse (En Sabah Nur) — full appearance

First full appearance of Apocalypse, following his cameo in X-Factor #5. Establishes the full threat of En Sabah Nur, one of the X-Men's most powerful and enduring villains. A key Bronze Age issue.