I was proposing action house fees, but MrXLink rejected it. best MMO imaginable would have no introduced coin currecy, but that is their source of real money, so it will probably never happen. Tournaments with entry fee are easily doable, but that is PvP only thing, and introducing limits to PvE would be even more limiting than PvP because even less players would be able to complete these "chalanges". Giving promo cards like that would only mean few players would get controll over all promos in the game. Purchasing promos if player own specific card would be easy to add, but I do not think we want that, it would mean end of free market and full price control, based on our prices of the card.