X-Men / Avengers: Onslaught Omnibus

Marvel's 2015 X-Men / Avengers: Onslaught Omnibus collects the sprawling crossover event into a single hefty volume, reprinting the core saga where the psychic entity Onslaught threatens both mutantkind and Earth's Mightiest Heroes. The omnibus features a cover by Ian Churchill, whose dynamic style captures the epic scale of the conflict. This collection matters as a definitive, all-in-one package for readers wanting to experience the full, bombastic crossover that reshaped the Marvel Universe in the late 1990s.