Hearthpwn

If you use Emperor Thaurissan, Leeroy Jenkins and Bestial Wrath, you can actually complete a OTK no matter what happens. Emperor Thaurissan will make Leeroy Jenkins and Knuckles 4 cost, Bestial Wrath and The Beast Within will become 0 cost, and Crazed Alchemist and Goblin Prank will become 1cost, completing a 10 cost OTK.

These are good points. I need to test them out. However I feel these are fringe cases so it my be prudent to have the least amount of combo pieces as possible. 

If opponent have no or just 1 minions this will not work.

But i like the idea.

Only if the minions has taunt

Exactly. The opponent need 2 minions, ideally no poisonous ones and if at full health no lifesteal minions either because the combo does 35 damage. 

That's a reasonable amount of restriction so it's really depends on the meta. Currently I believe having 2 minions on the opponent's side is not a hard thing to accomplish. 

Also since secret hunter is a pretty strong archetype anyway, I think in most cases that would just win the game on it's own. No need for any sort of big combo.  

But this is just theory, I have not tested the deck at all. Happy to get feedback how to make it better :).

You can throw in Emperor Thaurissan and Leeroy Jenkins to discount the combo pieces and then guarantee two minions to attack for Knuckles in the same turn