Hearthstone: Heroes of Warcraft is getting a whole lot bigger very soon. At Blizzcon today, the developer announced that the addictive card game's first big expansion will be called "Goblins vs. Gnomes." First teased back in September, the expansion will add 120 new cards to the game, and it sounds like it will make the game quite a bit goofier — among the new additions are exploding sheep. "Goblins vs. Gnomes" follows in the footsteps of "Curse of Naxxramas," a smaller add on that included 30 new cards and a new single-player mode. "Goblins vs. Gnomes" appears to be quite a bit more expansive, though, and it's also coming soon: expect to get your hands on the new cards sometime next month on both PC and iPad.