Blizzard revealed at BlizzCon 2018 that the next Hearthstone expansion is Rastakhan’s Rumble, a troll-themed set that will offer a new single-player adventure and mechanic.
Rastakhan, the king of the Zandalari and the ruler of the great troll empire, has called forth the troll tribes of Azeroth to witness the “knock-down, drag-out, no-holds-barred, rough-and-tumble, beautifically brutal gladiatorial celebration” known as Rastakhan’s Rumble.
The game will offer nine legendary troll champions, one for each hero class of Hearthstone, accompanied by Loa, powerful primal gods worshipped by trolls which will also be represented by legendary cards in the expansion.
Revealed cards for the set include Hir’eek, the Bat (one of the troll champions as an 8-cost 1/1 Warlock minion with a Battlecry ability that fills the player’s board with copies of it), and Shirvallah, the Tiger (one of the Loa as a 25-cost 7/5 Paladin minion with Divine Shield, Rush, Lifesteal, and an ability that reduces its cost by 1 for each mana that the player has spent on spells for the match).
The Loa will each also come with a Spirit, which are minions with potent passive powers that come with Stealth for one round.
An example is Spirit of the Shark, a 4-cost 0/3 Rogue minion that triggers Battlecries and Combos of the player’s minions twice.