Hearthpwn

The idea behind this deck is to place a lot of cheap minions on the board to pressure the enemy early game; use soul of the forest when you have at least 3-4 minions on the board; and win by savage roaring in mid-to-late game.

It's a constant aggro deck meaning you will pressure the enemy throughout all the different stages of the game. I run 2x Defenders and 2x Druids of the Claw if I need taunt against UTH Hunters and other Aggro Decks. The Defenders also help to push the 1HP minions out of Hero Power range. The Druids of the Claw can be used in cat form for even more pressure. 

You will run out of cards by mid-game, so the 2x Nourishes will help you get the tempo back / look for savage roars and soul of the forests. I also run a cult master in case I need even more card draw, and since everything's dying left and right, you can easily feed the ghoul.

The Swipes are absolutely brilliant not just because they help remove the leftover Doges from the field, but they also deal 4 damage each to the enemy hero.

Starfire/Starfall could be run with this deck if you need even more damage, aoe removal.

EDIT: About the amount of damage you can deal with this deck in one turn:

-The worst case scenario is that you savage roar [3x Creatures]  with [2 Attack Power] resulting in 14DMG altogether.

-The best case scenario is savage roaring TWICE, [4x Creatures] with [2 Attack Power] resulting in 28DMG!

This happens often since even if the enemy removes your creatures with an expensive aoe (consecrate, holy nova, flamestrike), they come back as 2/2 Treants.