Hearthpwn

The win condition:

Obiusly Mecha'thun.(Empty deck, empty hand and your board too when Mecha'thun dead)

There are three ways to kill Mecha'thun with this deck, the most efficient one is to find 1x Inner Rage, 1x Whirlwind and Hemet. It is important to draw Inner Rage and Whirlwind before using hemet to do not destroy those pieces of the combo. After using Hemet you will have 7 cards in deck, including 4 pieces of the combo(Malygos,Mecha'thun,Boombship and ticking abomination) there is no problem drawing the high cost cards before using Hemet, the goal is having the combo pieces with your empty board and deck, use the boombship Inner Rage on Malygos and Whirlwind GG .

2- Another way to win are obtaining 2x Inner rage, (same process, Hemet etc...) use an Inner rage on Malygos, other on Mecha'thun and Whirlwind to end. This combo is harder to do because the second Inner rage, but it is there if you get both Inner rage and you need the minion in board(Ticking abomination).

3-The last ''viable'' way to kill  Mecha'thun is using doble Whirlwind at the end obviusly with coin.

+ There are variations of the deck with more ways to kill Mecha'thun, it is not a strict deck :v

+2 If you don't get all pieces of the combo GG it is almost impossible to win