So ... it's basically the same deck, but you can run the combo in other ways and you do not need "no-good" cards like The Boomship, Malygos and Whirlwind.

Basically the combo consists of using all cards including Mecha'thun leaving only Da Undatakah, Inner Rage and Devastate and using those cards in this same order (remembering that you can not have discovered any card with deathrattle by Dr. Boom, Mad Genius HP).

If you have more than 5 armor or Dr. Boom, Mad Genius HP that gives you 7 armor, then the combo can run with only the Da Undatakah and Shield Slam.

The Combo can change depending on the cards you draw using Jepetto Joybuzz. For example, if you draw Mecha'thun then you can play several deathrattle minions and  Da Undatakah as tempo cards, in case you do not win with the control and tempo just use the 1 mana Mecha'thun with any other removal card you have.

Tech Options:

Execute: Good against fields with one or two large minions where Brawl would have no effect  (use against Giant Mage and Mechs)

Big Game Hunter: I prefer this option more than Execute, since it does not have to use any other card to remove the target minion. (use against Giant Mage and Mechs)

Spellbreaker: Incredible card to play against any mech deck

Archmage Vargoth: Very very very good against aggressive decks, but I do not see much use against control decks beside Bomb Warrior, and it is a little difficult to kill if it is one of your last cards. (use against aggro decks)