'Hearthstone' Mercenaries Game Mode Guide: Gameplay, Cards, Combat Roles, Mercenary Minions, and More
Mercenaries, the newest game mode in Hearthstone, lets its playersa collect minions that has unique combat roles and abilities that they can use in either PvE "Bounties" or against other players.
Tyrande Whisperwind Millhouse Manastorm Cornelius Roame Grommash Hellscream Blademaster Samuro Coming October
Source: gamenguide.com