The Year of the Mammoth ushers in a new year for Hearthstone! Blackrock Mountain, The Grand Tournament, and The League of Explorers become exclusive to the Wild format. Learn more here: http://us.battle.net/hearthstone/en/blog/20475356/
http://PlayHearthstone.com
Subscribe!
http://www.youtube.com/subscription_center?add_user=PlayHearthstone