Astonishing X-Men: Exogenetic

Warren Ellis steers the X-Men into a chilling sci-fi frontier with this 2010 Marvel one-shot, illustrated by Phil Jimenez and Andy Lanning. The story pits the team against a terrifying new strain of alien biotechnology that threatens to rewrite the rules of mutation itself. Though a single issue, it stands as a taut, self-contained thriller that showcases Ellis's knack for high-concept, body-horror-infused superhero storytelling.