Though, Everybody seems to just ignored my Earlier theory.
I actually meant to respond to this and completely forgot. I think it could actually be a really good lead though, because it was regarding something to do with crystals and mist, right? I did some googling and this seems to match pretty closely with what you described https://marvelcinematicuniverse.fandom.com/wiki/Terrigen_Mist. Do you have any more info about this encounter or something that could help provide a clue?