Mulligans
General Mulligans
Do not keep any cards for the combo! You want to draw them off an outcasted Skull so it's very important that the outcast is utilized. The combo is complex and a lot of mana cheating is required.
Using Clockwork Automaton the Metamorphosis hero power can be used to deal an insane amount of damage.
3 Automatons is enough to deal 40 damage and easily attained. 4 will do 80 and I suspect needed for those pesky control warriors.
For the most part there is also the tempo generated by demon hunter being demon hunter so there is always a chance you wont need so many automatons to deal the final blow.
4 Automaton combo: Play automaton –> Cube the automaton –> Play augmerchant on Cube –> Taldaram the Cube –> Play Immolation Aura –> Hero Power for 80! *Skull of Gul’Dan needed to hit any card but Augmerchant*.
3 Automaton combo: *Skull of Gul’Dan involved* A bit uncommon but possible if the skull draws either both automatons or an automaton and taldaram.