How does this idea sound? A one shot, one use card that is very hard to come by that can be found anywhere in the game and maybe could only be used by one wizard at a time. Are you busy today and don't have enough time to finish that Morganth fight? One shot. Are you having trouble at pvp and want to win a tournament quickly? One shot. Do you want to impress your friends when you trade treasure cards? One shot. Let me know what you think of this idea and how well it might fit into the game?