Blizzard has just announced Hearthstone: Heroes of Warcraft , a free-to-play collectible card game set in the universe of Warcraft . You can play as one of nine World of Warcraft classes, collect cards, and battle people online. No release date yet, but the game will be out for PC and Mac, with an iPad version coming "shortly thereafter." The game is coming out soon, Blizzard said—"Not Blizzard soon, but IRL soon." You can sign up for Hearthstone: Heroes of Warcraft on Blizzard's website right now , and the beta will launch this summer. This game was developed by a small team of 15 people, Blizzard chief creative officer Rob Pardo said while announcing the game during a PAX East panel this morning. The goal: create a simple, competitive game with a more mobile team than they've used for bigger beasts like StarCraft II and Diablo III . They want it to be "small in scope, but epic in gameplay," Pardo said. During the pane...