I don't know if I was just having horrible luck or my friend was having great luck, but I went 0-5 against this deck (or at least this is as close as I could get from memory). I used a couple different decks against it and it just held up, including against a Targ/Lann deck where in my first 2 turns I had Dany, Drogo, 2 moneylenders, a brothel madame, and a dragon with Jamie in my hand from a summons. This is not to say the deck will crush you. It will wear you down. Every game lasted at least 7 turn, which is oddly enough a very thematic fit for Martell fealty. I would say it's biggest strength is recovery. A well timed Ghaston Grey after a Varys with a Long Plan into Trading with the Pentoshi makes it very hard if not impossible for an opponent to compete. And if you don't have Varys, counting coppers and the greenblood traders will do good work finding a copy. Also, Tears of Lys plus the variety of icon steal can mean death for anybody.