[#item_full_content] Marvel fans spent years blaming Mephisto for practically every strange thing happening in the MCU. The theories became a running joke during WandaVision , but Marvel eventually did introduce the demonic villain, just not in the massive, universe-shaking fashion longtime comic readers might have e 
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Marvel’s GHOST RIDER Could Finally Unleash Mephisto as a Major MCU Villain
ByMarvelComicBooks.com
August 10, 2026