Tonight I got the fire splinter for my daily quest and lost a lot of battles. I finally finished my quest then spent an hour battling my way back up into Gold III. I was rewarded with these cards because of my ranking.
I am happy to get a black dragon as a reward, if only it was a gold black dragon...
I also opened a beta booster, thinking maybe I was going to have good luck today... I was disappointed as I thought it was boring....
I was hoping for something a little better than the stone golem... Maybe next beta booster I open will be more exciting.