Hearthpwn

Refined version of the deck. Once you learn how to navigate it, surprisingly plays out well against most decks. Is weaker against some aggro decks with great draw, but then which deck isn't? Goal is to duplicate Elwynn Boar with Selective Breeder . U then need (most often) 1 or 2 minions to crash your Elwynn Boar and/or Selective Breeder into their minion with Devouring Swarm and get them back in hand back. 

Use Resizing Pouch to discover 0 cost card. Since there are only 4 in pool that can be discovered you have 75% chance of getting the Devouring Swarm. 

Keep at least 1 Bola Shot in hand to kill off your Elwynn Boars if the opponent does not have the minions in which you can crash yours. 

Do not use Devouring Swarm on less then 2 Elwynn Boars (Selective Breeder + Elwynn Boar is also fine, but watch out that Breeder dies since he has 3 health)

Doggie Biscuit is mainly used as draw for 1 mana and giving rush to your minions, wether to clear or to kill of your Elwynn Boar. 

Arcane Shot is in to be able to draw 3 with Multicaster and as soft clear or tool to kill of your Elwynn Boar. 

Revive Pet is used as a filler for Elwynn Boar. In 40% of cases it comes in handy. You can also revive beasts from Beaststalker Tavishs Hero Power. 

Feel free to use Furious Howl as 2 mana draw 1 as we want the combo pieces ASAP.

Early look for Selective Breeder, Dun Baldar Bunker and Beaststalker Tavish

I am currently 21-9 with the deck(Gold2 - Plat5). It is still doing pretty well so give it a shot. It does take some time to get all the possibilities in which you can reach your 7th deathrattle on  Elwynn Boar but the payout is worth it.