Azindel's MeanMaskMill (Mill Ramp)

Massive ramp (+20 Max. Power in a turn is no rarity) thanks to Azindel, the Wayfinder working with the mill from Means to an End, Solitude, Invoke the Waystones and Dreamsnatcher.
Mask of Torment as ramp plan B and payoff, with all the synergy already in there.
On top a small toolbox of Dark Returnable units with high power demand:
Dropping Talir, Unbound and activating her right away isn't as rare as one might think. Emerging Colossus and Worldjoiner are best played in combination with Twilight Hunt. First one gets mostly a free Solitude or Invoke the Waystones that perhaps was self milled before. The later reduces the enemies board to ashes, kills the biggest threat and becomes huge in the process (feels so nice to hunt down Gearcruncher).

(Still brewing and working on the deck.)