Hearthpwn

Hit Legend with this yesterday. Proof: http://imgur.com/a/e2unV

Summary: 

This is a new type of priest that I think has some great opportunity on the ladder. It's pretty easy to execute and it relies on creating board control to set up combos in the late game with major dormo and confuse.

Guide:

Circle of Healing: This is used for keeping your taunts alive

Murloc Tinyfin: early board control. It's important you get these out as soon as possible. Playing all your 0 cost minions from your hand allows the alarm-o-bot combo to work more consistently.

Silence: Again, more cheap control.

Wisp: Same as murloc tinyfin.

Angry Chicken: Can be buffed with Divine spirit then enraged. Use confuse to switch Damage to health then use another divine spirit to make a 1/12. With inner fire it becomes a 12/12

Inner fire: use on buffed magama ragers, alarm-o-bots and angry chickens. 

Confuse: Use on magma ragers, angry chickens etc

Convert: This is where the deck's flexibility really shines. Basically whatever creatures an opponent is playing can be 'mirrored' with this card, essentially making the board an even playing field until late game. At this point you can shift the tide of the battle using majordormo. 

Divine Spirit: Buffs magma ragers and Faceless Shamblers. 

Mana Wraith: Only one of these. Good early control against zoo warlocks and hunters. 

Alarm-o-bot: This allows you to get your majordormo executus out as quickly as possible.

Magma Rager: Can be confused to a 1/5 then divine spirited to a 1/10, then a 1/20. At this point use inner fire for a 20 damage combo. Kills most classes except warrior.

Faceless Shambler: Can be used on major dormo or buffed magma rager for a 20/20 with taunt.
Mass Dispel: Effective control and card draw

Faceless Manipulator: Used on Dormo or your buffed chickens/magma ragers. 

Majordormo Executus: Basically you want to get this out as quickly as possible. Versus aggro decks it can sometimes be more effective to silence this guy before he dies so you don't go down to 8 health. Versus control warrior and priest however you want to make sure he dies as soon as possible.

N'Zoth the Corruptor: For double Majordormo value. With Faceless Manipulator this deck can get up to four majordormo's. 

Mulligan:

The ideal hand is alarm-o-bot plus majordormo. Don't keep magma ragers or angry chickens because these are used late game with confuse/divine spirit combo. Play out your 0 cost mana cards as soon as you can because you need early board control for this deck to work. Against hunters and warlocks keep manawraith and silence.