[Marvel] The Beloved Two-Faced One

A person falls from the sky and sends shockwaves through the Marvel Universe. A man with a dual personality: a wizard who is controlled, yet impossible to control. Who is he, really? Why do both Thor and Loki remember him, while he... remembers nothing at all? ↗ A story about everyone doting on the protagonist. No pairing decided yet. The timeline definitely won't match the original, but the important things will still happen. As for the pairing, that's up to your imagination. [The protagonist has no memories of another version of himself. He has absolutely no idea. As for why, who knows? Of course, the person he relies on most is Captain America, so he has some rich guy constantly going on about the Captain's flaws, trying to brainwash him.] Theme: Everyone dotes on the protagonist