The plan is straightforward. Remove your opponent's threats in the early game and drop large creatures in the late game.
Removal/burn: Dreadbore, Terminate, Tribute to Hunger, Pyroclasm, Kolaghan's Command (potentially), Lightning Bolt
Card draw: Night's Whisper, Dusk Urchins
Creatures: Dusk Urchins, Desecration Demon, Demigod of Revenge
Utility: Inquisition of Kozilek, Kolaghan's Command
Most cards are pretty straightforward, but there are several more things I should probably point out.
Firstly, I chose Inquisition of Kozilek over its many competitors because it can slow my opponents down early or force them to discard removal, which is almost always 3 or less CMC, later in the game. Secondly, since I can generally keep my opponent's board clear of creatures, Tribute to Hunger often gives them no choice but to sacrifice a creature that has hexproof, regen, shroud, indestructible and/or very high toughness. Thirdly, if all goes as planned, my opponent won't have much to sacrifice to desecration demon.
Comments & advice are welcome! Cheers