Watch us get a little silly as we open 59 Mean Streets of Gadgetzan card packs in Hearthstone

Everyone, get in here — to open some card packs!

This morning, Blizzard Entertainment released Mean Streets of Gadgetzan, the fourth expansion to Hearthstone. It adds 132 cards to the leader in the $1.2 billion global digital card-game market, and it introduces new features as well: