Hearthpwn

I think it's fairly ok. It's basically a card that says have a board clear or lose. Although many decks will have a board clear others will not, or at least their board clears will be few and varied. As the name suggests it is the 'finishing' card. If you are playing a priest or warrior as midrange shaman it is pretty easy to exhaust their board clears early on and if you already have the board when you play the combo it will be really hard for a full clear to come out barring brawl and twisting nether (think 7/7 things from below and 4/5 feral spirits). It is quite possible this card might see play