Hearthpwn

This card would be played for the battlecry effect alone in nearly all decks except quest warlock.

1 mana for  5 amror

4 mana for 3dmg aoe

5 mana for draw three cards

1-2 mana for shuffeling in 3 3/3

thats about 11 mana worth of stuff for 6 mana in one card.

 Edit: also you shuffle the cards in before you draw, which is a further tiny upside

The hero power is a strict upgrade in most cases (except quest/ fleshgiant).

It is not flashy, but this could be the hero card that will se most play in this set.

This set has so many good to insane arena cards...

This one will be pretty good in mage/shaman.

Probably wont make the cut in standard/wild, but you will see a lot of it in arena...

This is gonna be insane in arena...

Shitty standard card, good arena card (3/2 with stealth would get played anyway, and the effect is just a bonus)

To inconsistent for standard, but I predict this card will be the cause of many akward turns in arena.... Go first play this turn 2, and potentially ruin your opponents turn two. 

It's kinda like packmule.

Not sure if it will make the cut in standard (packmule was not played in warrior), but it will definetly be a very strong arena card.