For the past four ears, we've had many wild theories as to when and where we'd see the demon lord Mephisto in the MCU.

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,

Marvel's "Ironheart" finally introduces Mephisto (Sacha Baron Cohen) to the MCU. But after years of delays, does it work?