Hearthpwn

Hello. Here's a simple guide for this quite strong deck.

Update:

-2 Tol'vir Stoneshaper, +2 Tar Creeper
-Mind Control, +1 Potion of Madness
-2 Defender of Argus, + 2 Faerie Dragon
-Igneous Elemental, + Elise the Trailblazer for more value (could be replaced with Lyra the Sunshard)

The general strategy is to outtempo your opponents and don't give up the board.

Mulligan is similar to the dragon priest: in most matchups you need 1-2-3 drops; Potion of Madness, Shadow Word: Pain, Shadow Word: Death against aggro (pirate warriors, zoo, rogue).

Card choices:

Fire Fly - by far the best 1-drop of the expansion.
Radiant Elemental - decent 2-drop, especially after the buffs with Power Word: Shield or Kabal Talonpriest.
Igneous Elemental - gives 2 more health for the Twilight Drake, keeps the elemental synergy going.
Servant of Kalimos - the strongest card in the deck along with Drakonid Operative with a similar effect.
Ysera - if you managed to play her and still have the board control then you usually win.
Mind Control - the same with Ysera (rip Entomb btw).

Good luck on ladder!)