Marvel Studios used to be the undisputed champ of giving major characters a proper introduction. Now we get THIS.

Mephisto has finally entered the MCU in the final episode of Ironheart, leaving many fans wondering how powerful he is and where he could appear next. The demonic villain is known for striking deals that often come at a heavy price,

"I was empowered by Marvel to make that decision," said 'Ironheart' showrunner Chinaka Hodge, but admitted she doesn't know Mephisto's return.