Not a character, but a location—Magneto’s orbital space station. This is the first time the Master Edition flexes its "non-sentient entry" muscle. The spread includes a cross-section of Asteroid M’s gravity control rooms, barracks, and the iconic throne room. It’s a vital piece of X-Men history, especially given Magneto’s morally gray status at the time.
The is the debut issue of a specialized reference series released in December 1990. This edition marked a significant departure from previous handbook formats, moving away from standard comic book binding to a collectible "trading card" style that allowed readers to organize their own encyclopedic files. Historical Context and Origin
BANSHEE, BEAST, BETA RAY BILL, BLACK BOLT, BLACK PANTHER, BLACK WIDOW, BLADE, BLIZZARD, BROOD, BULLSEYE…
The second series, The Deluxe Edition (1985), expanded on this, offering longer entries and painted covers. However, by 1990, the Marvel Universe had exploded. The "X-Books" were dominating the sales charts, new anti-heroes like Ghost Rider and Punisher were rising, and the art style was shifting toward the dynamic, muscular aesthetics of the Image era.
