The goal of this Hearthstone Wild Handlock Warlock OTK combo deck is to use Mecha'thun combined with Rin the First Disciple and Howlfiend!
We do this by giving the opponent two copies of Mecha'thun via Expired Merchant and Treachery. Then, we clear the opponent's deck with Rin.
Finally, we clear the opponent's hand with Howlfiend and Treachery and destroy Mecha'thun with Cataclysm!
Extremely challenging, but fun meme deck! Good luck!