Mind Blast Control Priest

I like this build over the pure OTK version because there are more options against aggro with Auchenai Soulpriest and Wild Pyromancer. The dragon version has better board wipes but it seems more reactionary. Twilight Drake is a good target for Spellbreaker and removed with a Silver Hand Recruit. I dropped Injured Blademaster because it’s not hard to deal him 3 damage the next turn and put an end to our early game. 

This deck needs to control the board so it can survive until the combo pieces are assembled. Extra Arms is high value as a 2-for-1 card. It makes our Cleric and Acolyte better, as well as giving more fuel to our Pyromancer and Shadowreaper Anduin.

The perfect situation is to have a Radiant Elemental stick on the board, copy it with Vivid Nightmare (2 mana spent), cast Prophet Velen (9 mana spent), copy him with another Vivid Nightmare (10 mana spent), and then unload your Mind Blast for free dealing 20 damage each, possibly up to 80 total.

A more realistic option is to combo 2x Mind Blast and a Silence with 3x DK for 16 damage (or 19 with 3x Mind Blast and 2x DK).

Skulking Geist has plenty of targets. Blood Knight counters the new hotness Giggling Inventor. Psychic Scream is better than removal against Doomguard and the like to stall Carnivorous Cube and Bloodreaver Gul'dan.