X-Men vs. Avengers / Fantastic Four

In this 2011 one-shot from Marvel, the X-Men clash with both the Avengers and the Fantastic Four in a single issue of super-team conflict. Illustrated most frequently by veteran artist Keith Pollard, the story pits mutantkind against Earth's mightiest heroes and its first family. This brief but punchy crossover matters as a snapshot of Marvel's inter-team dynamics during that era.