Yeah so I lied about no more questions for a week or two >_>
With the new agenda being what it was in fact rumored to be, and me being a Greyjoy player, I have to go ahead and ask.
Does Ten Towers allow me to play "House X only" cards in an opponent's discard pile, with "X" being any house other than Greyjoy? I would assume that "House X only" is just a deckbuilding restriction and that I can in fact troll Targ players with their own Incinerates, but I want to go ahead and check.