I'm kind of new to Hearthstone, but the deck I set up Is for the Rogue, and the strategy is to kill off the oppenents minions with putting down as few cards as possible. I don't know what you would call that kind of deck, but it's stacked with cards like Vanish and backstab, and cards that are like "Do 2 damage to an undamaged minion". I find it pretty effective.