Bastion

Bastion is a mysterious anti-mutant operative who emerged as the secret mastermind behind Operation: Zero Tolerance, a government-sanctioned program targeting mutantkind. Wielding genius-level intelligence, he united numerous anti-mutant factions under his leadership in a calculated campaign to eliminate the mutant threat.

Few Marvel villains have cast as long a shadow over mutantkind as Bastion, who made his chilling debut in The Uncanny X-Men #333 in 1996, brought to life by Scott Lobdell and Pascual Ferry during comics' Modern Age. Over a quarter-century of appearances across X-Men, The Uncanny X-Men, and Cable, this formidable figure has proven a persistent and dangerous presence, sharing pages with heavyweights like Wolverine, Cyclops, and Logan. Formally counted among the X-Men's world, Bastion carries the weight of a genuine threat — the kind of antagonist whose every appearance signals that the stakes just got very real. With 42 catalog appearances spanning 1996 to 2021, he's no footnote; he's a cornerstone of modern Marvel mutant history worth every collector's attention.