Mulligans
Control Mulligans
If you haven't Coldlight Oracle on mulligan, you can hold even The Curator.Mill deck based on new expansion cards.
I introduced The Darkness and Fal'dorei Strider as some well matching stuff for the mill type. I put there Cheat Death cause I think it’s just better than Gadgetzan Ferryman and I added Evasion that may could freeze the game somehow. If not, maybe some heal would be great. Also, there is Kingsbane comboing with Envenom Weapon and making your deck bigger. Plus, of course there some classic mill cards like Coldlight Oracle, Vanish or Sap.
I’m seeing Valeera the Hollow plus Shadowblade plus Coldlight Oracle finish with fatigue damage but maybe The Darkness is another win condition.