Mastodon

Mastodon is a member of Team X, the covert black-ops unit that included Wolverine, Sabretooth, and other operatives whose memories were manipulated by Weapon X. Like his teammates, he was subjected to the program's experimental procedures and false-memory implants.

Debuting in the pages of Wolverine #48 in 1991, Mastodon is a Marvel Comics figure who emerged during the Copper Age from the creative partnership of Larry Hama and Marc Silvestri — two architects of some of the most celebrated work in Wolverine's history. With appearances stretching across an impressive 26 years and a place in the Official Handbook of the Marvel Universe, this character carries the weight of serious Marvel canon, the kind of figure who earns handbook real estate precisely because they matter to the mythology. Sharing pages with Wolverine, Sabretooth, Silver Fox, and Victor Creed puts Mastodon squarely in one of Marvel's most intense and shadowy corners of storytelling — rare company that speaks volumes about where this character lives in the universe.