The Last 5 Minutes of 'Ironheart' Changed the MCU Forever — But How?

Warning: The following contains major spoilers for the Disney+ miniseries Ironheart. After the red herrings in WandaVision and Agatha All Along, the Marvel Cinematic Universe finally introduced Mephisto in the final moments of Ironheart. Mephisto — essentially the Devil in Marvel Comics lore — is played here by a smooth-talking, bearded Sacha Baron Cohen. His introduction to the MCU has major implications for upcoming films like Avengers: Doomsday. But the existence of Mephisto isn’t the biggest game-changer in the last five minutes of Ironheart. To understand the impact of those moments on Ri