Squadron Supreme vs. Avengers

In this 2021 Marvel one-shot, the Squadron Supreme and the Avengers clash in a battle that tests the limits of both super-teams. The issue, defined by the late George Pérez's iconic artwork, pits Marvel's premier heroes against their dark-mirror counterparts in a high-stakes confrontation. Though a single issue, it stands as a meaningful showcase of Pérez's final contributions to the publisher, capturing the epic scale and moral complexity that defined his decades-long career.