I got an email for joining the beta yesterday and start playing it last night.
I like the different take on this game where you have to win 2 of 3 rounds but you have to do it with the cards you have available. So go overboard in 1 round will cost you the other 2. Strategy does play a big part in this game.
One of the biggest idiotic moves I made last night was not reading a card correctly. Destroy this highest level card that isn't gold. In my head, I was thinking that would apply to the enemy only. Nope, I ended up destroying my own creature and costing me the round.