Hearthpwn

Its is also destroy any beast, including your own.

This is a big wumbo combo but say you have a tundra rhino and savannas on board. Feigndeath and then kill your own savannas! thats 20 damage not to mention baron rivendare.

But its unlikely

If your opponent has managed to get both a Tundra Rhino and a Savannah Highmane to stick, you've probably already lost.

I think you guys are missing a huge factor here!  If you have to use Hemming on a Beast worthy of using him in the first place ( 5/5 beast or larger ) against a Hunter,  you most likely already lost the match.  You cannot let Hunters  ever get that much board control when they are playing Beast Decks or you are screwed.

Against Druids tho,  I can see this card really helping clear the board of huge Beast threats.

Who else can counter Hunter than the Main Hunter :P . The problem is if you put this card in a deck and you get an opponent which is not Druid or Hunter :/ Than its extremely undervalued

This card is BGH little brother, but sadly isnt BGH so meh.

Good Recombobulator target...

It should be a 3/6 as a 6/3 it's useless against hunter. If druid makes a huge comeback it will be really good as it kills druid of the claw.

This won't see much (if any) play in constructed.

I can see it in tournament decks, as a specific tech card against Hunter and Druid. You often see tournament decks packing this sort of tech as hard counter against other popular archetypes. That's pretty much what this card exists for. A pseudo-sideboard.

This is actually one of the biggest disappointing leg of the full GvG set...