Hearthpwn

First of all thanks to Astrohawke18 for the idea of Majordomo. All credit goes to him/her

I didnt have the Deathwing so I searched for a solution and found it at last.

The main idea is; when the General uses Mindgames hope he will get the Majordomo Executus (you can increase the chance of it by holding your other minions). And when he get it kill Majordomo Executus with Pyroblast. So he will be replaced by Ragnaros the Firelord. And that is where Ravenholdt Assassin works. We must put him before we kill Majordomo Executus so we have a 2 stealth assassins waiting to finish it the exact turn that we kill Majordomo Executus. If you have Pyroblast you can kill the Executus with 1 Assassin and Ragnaros with Pyroblast too. So you can run the deck with only 1 Assassin thus increasing the chance of Mindgames. But if you are running with Big Game Hunter and there are 2 scenarios you kill him on the same turn with the 2 Assassins(or panthers) or you hit him with Assassin leaving him with a 1hp to finish with your hero power. (And yes you will have mana for it because his old hero power will replace by Ragnaros)

There can be many card replacements if you dont have any of the cards but I believe this one has the highest chance to win. Anyway here are the suggestions;

For the spells : you can take whatever you want actually there is one goal for the spells and that is to stay alive(killing or freezing his minions) . So if you do not have any of the spells feel free to change with anything that can come handy just dont forget that you must change it with a spell because if you change with a minion you reduce the chance of Mindgaming the Majordomo Executus. Or you can of course change the spells if you believe there are more useful spells to stay alive, I have tried to create the cheapest deck after all.

For The Pyroblast : You can change it with Big Game Hunter if you dont have it but you reduce the chance of Mindgaming Executus so try to hold Big Game Hunter in your hand.

For the minions:

Ravenholdt Assassin : You can try 2 Jungle Panther if you dont have Ravenholdt Assassin but be warned the General have Flamestrike so you will be in a risk to lose the panthers.(and lost the game probably) That is why I suggest Ravenholdt Assassin.

Majordomo Executus : You have it if you came to General Drakkisath and no you can not replace it since it is the main card of the plan.

Tips:

-Mulligan for Pyro and Assassin

-If you have Majordomo Executus in your starting hand just concede do not waste your time.

As I said the main idea is Astrohawke18 's I just modified it. Hope it will work for you