Blizzard plans to launch real money pre-orders for Blackrock Mountain on March 19 and will throw in an exclusive card for those folks. Here's what players can expect from this Hearthstone expansion, which can be downloaded from the Google Play Store when it becomes available:

The Blackrock Mountain Adventure thrusts Hearthstone players into the middle of a war between powerful forces battling for control of the mountain. There, duelists will encounter fierce minions, including Dark Iron dwarves, fire elementals, and dragons, before facing off against iconic menaces from the Warcraft® universe, such as Ragnaros, the Firelord. Card-slingers who take down these villains will reap a mighty reward—31 scorching new cards inspired by the legendary mountain and its denizens, bringing a wealth of new tactical options to the ever-evolving Hearthstone metagame.

Blackrock Mountain will open up one wing per week over the course of a month. As with the game's first Adventure, Curse of Naxxramas, it will be accessible for either 700 in-game gold per wing or $6.99 per wing , with the entire Adventure purchasable for $24.99. Further details, including specific launch timing, will be announced in the weeks ahead.

In addition, GameSpot reports from PAX East that Blizzard plans to expand Hearthstone to Android smartphones sometime in the coming months.

Source: Blizzard