Feature: A tribe called Trolls
The next Hearthstone expansion was announced at BlizzCon earlier this month. Titled Rastakhan's Rumble, it'll add another 135 new cards to the game, a new Shaman hero called King Rastakhan, and a new single-player mode called Rumble Run.The theme this time around is on the Troll tribe - a long-awaited direction for the game, and one that also ties in quite neatly with events from…