Euron will steal a dragon…
So theory is drawing a lot from the books, so bear with us show-watchers-only. In the books, Euron is possession of a magical, Valyrian horn named the Dragonbinder. If someone blows the horn, it glows and glyphs burn and then that person dies because their insides are ash. The horn is said to bind any dragon who hears the call to the one who sounds the horn, but no mortal can blow the horn and survive. What a predicament! Euron claims he knows some dark magic trickery to allow him to use the horn and then live to bind a dragon to his will. This theory says that Euron is telling the truth and will steal at least one dragon. This theory leads us right into the next…