Hearthpwn

Malygos via Muckmorpher or Eureka! into 2x Lightning Bolt and 2x Totemic Smash = 30 damage

Maan... Do. I. LOVE THIS CAARD!  I can't wait to play it.

Nobody seems to consider it being a card draw equal to Arcane Intellect, if you just combine it with a Loot Hoarder.

With Spider Bomb it's like a Deadly Shot.

Just for the card draw it's huge in Hunter. And when you add the flexibility of the Discover... Woosh! Baby... It'll be beautiful.

And you have a spot for a third deathrattle. Why not Oblivitron. It'll summon it, which'll summon a Bomb. Developing a board while destroying your opponent's. For 3 mana. It sure sounds like a nerf candidate, but I sure hope it'll go under the radar. :D

Quote from Ace1a >>

This card will be played in slower beast hunter builds, not the current "midrange" aggro builds. It will be used to give you 3-5 extra late game beasts(such as King Krush or Oondasta) to outvalue other slower decks.

 I played a combo with Emeriss -> 14/14 Oondasta + The Beast Within -> 16/16 King Krush + 14/14 Charged Devilsaur. 

With the rotation of Charged Devilsaur, Hunting Party gives you the other big charger(s) that you need for this 30+dmg burst.

In short: I love it! 

Additionally, Hunter now seems to have much more survival than before. 

Scraphound + Zilliax + this one. Heals you for 15 and adds 15 armor on top. For just 9 mana. It's Reno on steroids. And it has even greater defensive potential.

I am really waiting to see this, despite that it'll probably be used against me, since I don't play Warrior. :D