After trying all versions of this deck I decided I would create the perfect version of it myself.
For those who don't know what Mecha'thun Warlock is about, it's pretty simple, here's the combo:
Once you've played Emperor Thaurissan, the next turn is where you play Mecha'thun first, then you play Bloodbloom and finish with Cataclysm (Make sure your deck is empty!) There you have it, easy win.... well if you can get there....
So that would be the normal version of the deck right?
Here's where things start to get on a whole new level...
In my own version of the deck I made it possible to get the combo without Emperor Thaurissan just in case things don't go that well. How many time have I lost right after playing Emperor Thaurissan without even surviving to the next round where I should've win?!... Yepp, It's pretty risky when you get there, especially since many players know what's about to happen. Regular Mecha'thun Warlock is no secret haha!
That's why I added the quest. Supreme Archaeology
With the quest if you draw only ONE of the 3 combo cards you will be able to achieve the combo without Emperor Thaurissan since one of the cards will cost ZERO mana! This alone already makes the deck more reliable and powerful!
An important thing about this deck is you need to be able to survive. So having less duplicates in the deck makes Zephrys the Great and Reno Jackson easier to play. And YOU WILL need them most of the time!
I also decided to go with only one Plot Twist. The card help so much with your quest Supreme Archaeology! (It also work like some kind of "Brainstorm" from Magic The Gathering) What I mean is you may not have the card you need in your hands to deal with a certain situation so playing Plot Twist could bring you the card you need at that precise moment!
Be careful though!
Don't play The Soularium if you don't have your combo cards in hands! This could cost you a lot! You only play that card to empty your deck faster when needed.
You want your deck to be empty so you can play your combo and win!
CARDS YOU WANT IN YOUR STARTING HAND:
ONE LAST THING
Be careful, you REALLY don't want to burn the wrong cards! Don't keep your hand too full. Just make sure to always clean the board and keep it clear! Health is very precious but don't be affraid to lose some to draw cards! You want to empty your deck ASAP but you also want to survive until then!
This deck is very strong (and fun) and I hope you guys will appreciate the hard work!
BTW sorry for my english, I speak french!