Hearthpwn

A good taunt, its legendary and its playable, I think the devs are gradually stopping the punishment of taunt minions and their statline, we need more of this and less underpowered taunts that see no play (but no more Thing from Below braking the game with ridiculous tempo). More viable deck types and tools for them is a good thing as long as they are balanced.

Seeing so many jade golem related cards, a possible N'Zoth, the Corruptor control deck with this and  Aya Blackpaw, very nice.

At 3 mana seems weak, I would rather it had more health, but strong taunt minions are so rare, another waste of a card in my opinion.

Very oriented toward control archtype games were value is key, control warrior and control paladin will make use of it occasionally. Sadly meta has been all about aggression and curving out, so on that note I don't see how this is worth running.

 The dreaded 5/6 statline on the 5 cost minion slot  has been finally added to a decent class card with a strong effect. Conditional effect makes it an alternative on the surefire azure drake; a good change! Welcome back my old dragon priest, if only for a short season though...(dragon priest will take a big hit next rotation).

Tech card against Zoo, aggro paladin/hunter, brings memories of Deathlord as counter to early flood decks. Probably one copy to counter if meta continues to rely on small difficult to kill minions. Regular stat line is below average for mana cost which is a shame, rather see it with 1 more health and we would be talking extra value here (being too careful not to replace druid of claw is not doing any favors, that card still has added flexibility).

Doubts about priests buffs are already evaporating, this card alone is an improvement over excavated evil on the board clear slot seeing most minions in the meta will not go above the 5 life threshold. One copy seems to be a must have for any priest deck including tempo dragon (archtype that could disappear next rotation).

Very strong card, alongside with other options such as Potion of Madness, Drakonid Operative, Mistress of Mixtures and Kabal Talonpriest we are looking at a good shot for priest to return with strength.

Kazakus could also be a great addition seeing it's AOE, resurrect and armoring potential.

If they check their stats and want some profit it is almost certain they will make some strong priest cards to change the meta. Already happened with shaman, most likely will happen with priest.