Hearthstone players are about to pay a visit to the Mean Streets of Gadgetzan. The new 132-card set launches on Thursday, December 1, and is themed around three shady crime families. Aside from some actually playable Priest cards, the most interesting part of the set are the new ‘tri-class’ cards. These can only be included in decks belonging to the crime family which your class is part of. There are only nine tri-class cards total, three for each family, and they’re denoted by a little banner with an icon which hangs in the top left , themed around brewing powerful potions and only using single copies of every card in your deck to unlock a powerful effect like Reno Jackson’s.