Hearthpwn

It can draw you a golden monkey...or even a class specific spell that can completely turn the game around. It can be drawn by museum curator or reveal the deck your enemy is playing. Yes will RNG be a bitch and the casters are going to love it this card for that. Also priest take a sadistic pleasure in playing the opponent's cards against them so i like it and it synergises well with N'zoth.

Turn 9:  Blood of the ancient one + conceal

Turn 10: shadown caster on blood of the ancient one =》1:1 blood watch the ancien one apear and conceal.

And then wait for the rage quit...

Ooohhh this makes the effects of yogg sharon even more chaotic...

 Secret pally souls shall suffer when the expansion rolls out and it will be a good ridance! There is nothing more anoying to concede because you know exactly  everything that is going to happen to you it is like the absolute opposite of fun.

I'll even add that they have no merit as they are all using a freking loopwhole that someone else figured out for them ... seriously where is the poetry and the ... originality...

I also wish this deck is going to suffer in wild mode and not get some sort of reinforcement... but looking at what just happened to patron warrior i'm not gonna put money on it... 

Well i guess duplicate / echo of mediv mage just got spoilt in wild format ^^.

Also druid aviana and innervate would do a nice job here

Combined with herald volazj would probably also work...

I had amazing momments of fun sweet deck