The second season of Hearthstone ranked play has begun. Last season offered the reward of the Mists of Pandaria card back. This season brings some Black Temple flavor to your deck. To earn this card back, you only need to reach rank 20 on the ladder -- easily achievable through casual play. This season will run throughout the month of May, and when this season is over, the Black Temple card back will no longer be available.
If you earned the Mists of Pandaria card back from last season and want to use it, you can select your card back through the in-game Options menu.