At PAX East overnight Blizzard announced the next (expected) add-on adventure for Hearthstone: Heroes of Warcraft titled "Blackrock Mountain".

The Blackrock Mountain Adventure thrusts Hearthstone players into the middle of a war between powerful forces battling for control of the mountain. There, duellists 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.

The new content is due to land *sometime* in April but much like the previous adventure, Curse of Naxxramas, Blackrock Mountain will open up "wings' each week for the full month, so it isn't too far off.

It will also follow the same pricing as the previous entry with the full add-on unlockable for $31.99 or each wing can be unlocked at $8.99 or 700 in-game gold. You can also pre-order from March 20 and anyone who does so will net an exclusive card back.

Here are the facts:

Based On Warcraft Lore
The inspiration for this adventure comes from one of the most treacherous of areas in all of Azeroth—Blackrock Mountain. Deep within its fiery depths, Ragnaros and Nefarian wage a brutal war for ultimate control of the mountain, and in doing so, have brought in malevolent creatures from all sides of the conflict to do their bidding. In this new Adventure, players will encounter many of the same Dark Iron dwarves, flame elementals, and dragons as those found deep within several classic World of Warcraft instances including Blackrock Depths, Molten Core, and Blackwing Lair.

In the [Blackrock] Mountain
Much like with the first Adventure, Curse of Naxxramas, the wings of Blackrock Mountain will open one at a time over a one month period. Players will be able to select Solo Adventures in the Hearthstone menu to access a new wing, opening up opportunities to duel all-new bosses and add even more cards to their collection.

Sinister bosses guard each wing of Blackrock Mountain and players will be rewarded with sizzling new cards for each vile villain they defeat. A total of 31 new cards can be earned upon completing this epic Adventure. After players earn Blackrock Mountain cards, they can be added to their constructed decks for use in other play modes. If players want their newly acquired cards to shine a little brighter, they’ll even be able to craft shiny golden versions.

Class Challenges
These challenges will test players’ skills with each class in duels using a specific premade deck. Emerge victorious to earn a Blackrock Mountain-themed card (one of the 31 new cards available in this adventure) for that specific class.

Heroic Mode
After defeating each wing, players can take on the far more challenging Heroic Mode. These fights are almost unfairly difficult, so unconventional decks and bold strategies may be required to conquer each fearsome challenge. Defeating Heroic Mode will grant the player bragging rights—and an exclusive Blackrock Mountain card back!

The Arena
After each wing is released, the cards available in that wing will be added to the Arena mix for everyone to play with, regardless of whether they’ve played through the Adventure.

Hearthstone: Blackrock Mountain will be available on PC, Android and iPad. Watch the cinematic reveal embedded below.