Hearthpwn

First time: boss played both Curse of Rafaam when I had low health and killed me.

Second time: managed to make it through without any problems. 

After countless attempts with an inner fire priest deck for this boss I managed to beat him with this deck. This deck really turned the most miserable experience in the whole HearthStone (trying to beat this boss) into the most fun experience I've had in a while. 

My substitutes: 

-1 Patient Assassin

-1 Sabotage

+2 Spellbreaker

Works pretty well for me, sine I don't have these two epics. 

And yeah, thanks for the amazing deck!

UNBELIEVABLE!!! after tons of tries with the priest one, THIS ONE ACTUALLY WORKED!

It's funny because I constantly get annoyed when I see "first try" comments on heroic bosses since the RNG is so terrible, but I honestly got this first try with this deck and that was even with a terrible misplay of prep -> shadowstep when I meant to use vanish.:/ Amazing deck 10/10 would replay this boss just for fun.

People who say the deck is garbage doesn't know how to play a mill deck. It works like a charm, though I did not use Sabotage or Cobra, I used another Betrayal and Mistress of Mixtures for healing myself. Good luck

How to get high votes in Hearthpwn:

1)Choose a really hard boss

2) Claim to have easily won against him with a mill deck.

3) Upvote your deck with a few smurfs, and make those smurfs comment :  "Thanks! won in my first try!"

4) Downvote any comment that says otherwise and enjoy as the sheepish hearthpwn users upvote your deck withouut even testing it.

I don't know if I was too unlucky or people just keep saying "first tried win".  @@.

This deck doesn't work with me since I've failed thousand times before I replaced some cards from this deck then i got one-first-shot on his face.

Here is the deck i used to beat him:

 I removed Sabotage and Assassinate because of theirs high mana-use, Pit Snake is also removed because of its ineffectiveness (the boss just one-hit on that snake everytime i put it on). I put some cheap Taunt minions and Kel'Thuzad to protect my 'face'. Combo Preparation + Vanish then put Taunt and Patient Assassin to regain the board control.

This one first shot him.

Missing a 1x preparation, 1x Patient Assassin

Replaced it with 2 fill in cards:  1x doomsayer, +1 Mind Control Tech (that i didnt use). 

finally did it for me

didn't have patient assissins, put in doomsayer and extra cobra.

Thanks!

Here is a deck with some logic. Not like this garbage we just encountered up top.

worked much better, thanks 

Used modified deck by cnhung333 with a few mods and won second try.  For me, I used Stubborn Gastropod x2 instead of Shieldbearer x2.  With Kel'Thuzad and taunts on board he kills off his own minions and you don't take damage.  Can go face with Kel'Thuzad to move the milling damage he takes along quicker. :P  Thank you!

Great deck/idea. Thanks!
Twitter: @Crozwords
twitch.tv/crozwords

This is a really great deck. It took me some tries but it works like a charm. I added a Whistle Tea because i dont have some cards. 

Thank you for this deck! I just defeated this boss after trying so many other decks. This one made milling so satisfying. I don't have any sabotage so i just replaced it with a second betrayal.

Took Around 10 tries but it still works well! Thanks!

Thanks to your comment I was convinced to try this out (saw that your post was less than a day old lol). Also took me around ten tries with this deck. =)

Stall, get the combo up gg wp.

THX

Are you kidding me? This is the best deck out there! Got it on first try without ever having played mill rogue before but I love it so much I might actually make a deck out of it! I've been stuck in this boss for quite a while so thanks so much!

I have been at this dozens of times for hours on end. Still not even close to winning. I hate this guy.

By the time I can safely get Gang up on an Oracle I'm already below 15.