After you reach a certain point expect about a 20% win rate no matter what deck you play. I have thousands of hours into this game, I know I should be progressing passed a certain point but I can't and I can tell I'm being intentionally nerfed. Not sure if this is an intentional tactic in order to goad you into spending more money or what but either way its not fun anymore. Also, you can forget about WOTC doing anything about it, all they care about is the next money grab. UNINSTALLED.