The goal of this Hearthstone Treachery Warlock OTK combo deck is to use Nefarian combined with Majordomo Executus!

We do this by playing Majordomo, Power Overwhelming, Treachery. Now that the opponent is classless Ragnaros, Nefarian will give us two copies of the spell Tail Swipe! We then use the two Tail Swipe to OTK the opponent!

Super fun meme deck! Good luck!