Hearthpwn

Control priest with many sources of life gain and board control. To finish, a four card combo can OTK your opponent with 40 damage.

Awaken the Makers is easy to complete with many deathrattle sources, a majority of which draw us more cards. Twilight's Call is a great tool to use to keep the flow of deathrattle minions going.

Explosive Sheep can be used in conjunction with any of the mass removal spells in the deck to deliver an even more powerful effect. It is great for controlling the early game board, and resisting aggressive decks from wearing you down too quickly.

The ending combo does require one tick of Emperor Thaurissan on your combo pieces. Once set up, play Prophet Velen and then Mirage Caller targeting Velen. You can then play two Mind Blast for 40 damage. Since it is untargeted damage, it can go through stealth or effects that prevent you from targeting the enemy hero.