A brand new Expansion for Blizzard’s popular collectible card game Hearthstone will be available this week.

Called Mean Streets of Gadgetzan, this expansion features a mobster theme and will be made available on Thursday, December 1. Those interested can pre-order 50 packs for $50 via Battle.net right now. Each pack contains 5 cards with a guaranteed rare card in each.

Mean Streets of Gadgetzan introduces 132 new cards, including tri-class cards that essentially introduce factions into the game. To learn more about each of the new cards coming in this Expansion, check out all four parts of our card reviews in the list below.

• Part One

• Part Two

• Part Three

• Part Four

The adventure One Night in Karazhan released earlier this year, bringing with it a single-player campaign against AI opponents. The last full expansion containing sets of new cards was Whispers of the Old Gods, which released earlier this year.