In addition to a whole new batch of cards and mechanics, Winds of Exchange also introduces the game's eleventh house, the Compacts of Ekwidon. This is a mercantile house founded by the asymmetrical Getrookya, and it's all about themes of trade and exchange. Joining the Ekwidon are six returning houses, including Brobnar, Sanctum, Saurians, Star Alliance, Unfathomable, and the long-awaited return of Mars!