Hearthpwn

The deck starts with annoying deathrattles, belchers and argus to stop zoo and aggro. After that you use board control or a damage burst to beat your opponent down.

Against slow decks, you can usually flood the board with tokens and you have options with bloodlust/leeroy combos/doomhammer combo to burst your opponent down. This is important when racing against a hunter or bringing down a handlock without giving him free mountain giants or a full board to wipe with shadowflame.

If you don't have a good opportunity to rush your opponent down, the deck can still play against a control deck in the late game with combos based on Sylvanas/Cairne and of course, Kel'Thuzad.