Hearthpwn

While in the normal Version Warrior was the superiorclass - in Heroic Priest is the pure godtier

Use Mind Vision and Thoughtsteal to get his 1mana 2/2 imps / have a Chance to get them

Use Shadow Madness to steal one of those Imps and trade against another one - you get to Keep the stolen one that way - same with Cabal Shadow Priest

Shadow Word: Pain and Shadow Word: Horror are both used to Trigger the imps deathrattle effects and to kill his other minions

The single Mass Dispel is in the deck as a small rescue - you can wipe his board while still having your minions 

Flash Heal only as a small sustainheal as the Boss usually hits hard the first 2-3 turns

Excavated Evil and Holy Nova as triggers and possible clear

Auchenai Soulpriest Circle of Healing Combo as DR.trigger

Priest of the Feast to regain a huge amount of your Healthpool
WARNING: DO NOT USE TOGETHER WITH Auchenai Soulpriest on the board

Swap:

You may swap Jeweled Scarab and the Acolyte of Pain against other Cards like a Abomination (but this Card can bugg the game forcing the enemy to not attack at all which kills the fun yet makes it easier); Hogger or Deathlord

I just prefered it that way

This deck is cheap to craft and realy effective