The first four wings of Blackrock Mountain are now live in all regions! The fifth and final wing, the Hidden Laboratory, will be released April 30 (depending on region).
Home to Ragnaros the Firelord and his fire elementals, Nefarian and the black dragonflight, and an army of Dark Iron dwarves, Hearthstone's second adventure features 5 wings with 17 boss encounters, and provides 31 new cards for players to add to their collections, as well as a new card back and a new battlefield. The adventure also features a Heroic mode and 9 Class Challenges.
For all the latest information on boss decks and strategies, the new cards and what to expect from the adventure, see Blackrock Mountain.