Tartarus

Emerging from the pages of the Modern Age in 2000, Tartarus made their Marvel debut in the landmark X-Men #100 — a milestone issue brought to life by the legendary Chris Claremont and the stunning linework of Leinil Francis Yu. This rare, elusive figure shares their brief but memorable corner of the Marvel Universe with heavy-hitters like Piotr Rasputin, Kitty Pryde, and the formidable Domina, suggesting a world of high-stakes mutant drama. With only a handful of appearances across X-Men and X-Men Universe, Tartarus is the kind of deep-cut discovery that makes dedicated collectors lean forward — a tantalizing enigma from a beloved era of X-Men storytelling.