Hearthstone’s tri-class cards will change the card game forever

Players expected Blizzard to announce a new expansion for its digital-card-game-market leader Hearthstone. They didn’t think it would introduce a new card type that completely changes the way they’ll make decks.
Before, cards have belonged in one of two categories: class (Mage, Rogue, Warrior, Warlock, Priest, Paladin, Shaman, Druid, and Hunter) and neutral, which could go into any deck. You couldn’t put a Hunter card in a Priest deck, for example (unless you use