Mephisto has finally made his MCU debut, though the timing does feel a little odd now that Phase 5 has come to a close after Ironheart.

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.

Four years after WandaVision made "Mephisto" the hottest search term Google had ever seen, Ironheart on Disney+ finally introduced the demonic villain Mephisto. He's Marvel's analogue to Satan, played Sacha Baron Cohen,