Hearthstone presents a new expansion with another fun music video and great promises

Hearthstone presents a new expansion with another fun music video and great promises Blizzard’s game will feature 135 new cards and new gameplay mechanics.   It’s been a while since the last Hearthstone expansion , and Blizzard is about to add more excitement to the card game with United in Stormwind . This expansion was announced with its own trailer and will arrive with more…