So I know throughout the books we here the dragon has three heads, or three treasons, basically things are happening in threes. But if Euron steals a dragon and tries to “side” with The Others that just leaves two dragons soooo wouldn’t we just need two dragon riders, Dany and Jon, versus three. Like whats the point of the third head of the dragon especially if its Tyrion. Also on a semi related note what will drive Tyrion’s plot once The Long Night comes what role will he fill?