Avengers vs. X-Men

Marvel's 2013 series Avengers vs. X-Men is a single-issue punch-up that pits Earth's Mightiest Heroes against the Children of the Atom, with artist Jim Cheung delivering the iconic clash. This one-shot captures the core conflict of the larger event—the Avengers' fear of the Phoenix Force versus the X-Men's hope for mutantkind's salvation—in a concentrated, high-stakes showdown. It matters as a self-contained snapshot of one of Marvel's most heated rivalries, offering a vivid, accessible entry point to the era's defining struggle.