In terms of what this will mean for gameplay, Chu said that there's a card coming called "Piranha Launcher" which is exactly what it sounds like: a weapon that shoots vicious fish. Then there's the Lotus Assassin which gains stealth points with every kill. The Kabal Talonpriest gives friendly cards three health.

These cards are from three different races, the Grimy Goons, the Kabal and the Lotus. Following that delta theme, there are tri-class cards as well, with the Kabal's Courier able to play within mage, priest and warlock decks.

Like new Overwatch hero Sombra, these will be playable on the Blizzcon show floor.