Avengers vs. X-Men in Doomsday – what the comics reveal about the MCU showdown

The Avengers: Doomsday trailer has confirmed that the MCU's biggest crossover yet will feature direct clashes between the Avengers and the X-Men. Based on Marvel comics source material, the two teams are expected to fight before uniting against their true common enemy. The film remains the most ambitious crossover in MCU history.