Earth's Mightiest
Professor X is a Jerk! Archive
Earth's Mightiest
UNCANNY X-MEN #102-103: New Nightcrawler Powers and the First Fastball Special (sort of)! (1977)
Earth's Mightiest
Wolverine #51-53 (1992): The Crunch Donundrum
Earth's Mightiest
MARC SPECTOR: MOON KNIGHT #39-43 (1992)
Earth's Mightiest
THE UNCANNY X-MEN #112-119 (1978-1979)
Earth's Mightiest
UNCANNY X-MEN #125-128: Proteus/Mutant X, and the first appearance of The Black Queen!
Earth's Mightiest
X-Men #1-3 (1991)
Earth's Mightiest
New Mutants #23-25 (1985)
Earth's Mightiest
The Uncanny X-Men #14-16 (1965-1966): First Sentinels!
Earth's Mightiest
THE X-MEN #2 (1963)
Earth's Mightiest