Free Comic Book Day 2020 (X-Men / Dark Ages)

This 2020 Free Comic Book Day one-shot from Marvel offers a double dose of X-Men storytelling. Jonathan Hickman and Pepe Larraz deliver a prologue to the "X of Swords" event, while Tini Howard sets the stage for the "Dark Ages" alternate reality. As a single issue, it served as an entry point for two major X-Men arcs, showcasing the franchise's expanding scope at the time.