Hearthpwn

A good basis for a deck here but definitely room for improvement!!

You want to keep 2-3 minions on the left side, blocking the red portal if he kills one, you want a back up ready. Only keep one taunt minion on the right side blocking the blue portal, always saving one in hand to replace when he kills, returns, or polymorphs your current taunt minion.

Once you get the pattern down it's easy enough, go face - he never plays minions. maximize your windfury minion. 

I added these cards to upgrade it a bit: 

Bonechewer Brawler
Demonfire
Wolfrider
Sludge Belcher

Worked well, thx a lot.

Awesome, took like 6 games because i didnt draw a single taunt

Thanks! So easy, first try.

thk bro. it's work. 10/07/2018

2nd time I got him down to 1 health. 4th try got him to 2 health. 7th try I finally got it.
Only counting proper mulligans as games.

Worked like a charm!

First try on Normal mode

Still works. Just keep a taunt minion in the blue stream and use red stream to maximize face damage each turn. I didn't have Possessed Villager or Darkshire Councilman, so I tried patching that up with King Mukla, Fire Fly, and Wolfrider. Wolfrider proved to be very useful, though I don't know about the other ones because I won before ever drawing them.

ez win

First try, thank you!

One shot, ty.

Two shot.  Don't bother, just restart if you don't get a taunt minion in your starting hand.

EZ. thanks. I don't have annoyotron. Subbed in Stonehill defender, discovered tar lurker. basically, flooded blue portal with taunts. 

Easy. Got him to 5 health on the first try. Beat him on the second. Nice deck!

This deck will take MANY MANY MANY attempts.  Everyone who said they got it in 1 is lying or EXTREMELY lucky, or did it when taunt minions bugged the boss.

I got in the 3rd attempt. Lost the first ones due to bad draw and still learning how the fight goes. Still, the deck is really good. No gimmick at all. You must be doing something wrong there. 

The guide isn't very helpful. My results: Hard mulligan for taunt minion and put it on the right, 100% winrate. Got it in 1, read your comment, tried it several more times, lost when no taunt. There are 6, so it's reasonably likely to get one though. Deck seems pretty optimized to get the job done. Probably AI makes it easier by not polymorphing the taunt. 

I one shot it.  Pretty easy.

Worked like a charm!