OK, so how i do the combo?
Oh much simple my friend, you play antonidas and generates 1 fireball, after play leyline manipulator, he will make your fireball cost 2 mana, after this play mecha’thun and kill him, in the fatigue you play da undatakah and kill him with your 2 cost fireball.
p.s.: Sorry for my bad english, i am from brazil, and i dont speak english.
Original Idea: https://www.hearthstonetopdecks.com/user/fcc-n/