Mono-Black Aggro
A Pioneer deck, by Aaron Miotke
6th place at a tournament in Findlay, Ohio, United States on 2020-01-11
As reported at http://www.starcitygames.com

Maindeck:

Creatures
4 Champion of Dusk
4 Dusk Legion Zealot
4 Gifted Aetherborn
4 Knight of the Ebon Legion
4 Murderous Rider

Instants
4 Fatal Push
2 Grasp of Darkness

Legendary Creatures
2 Kalitas, Traitor of Ghet

Legendary Planeswalkers
4 Sorin, Imperious Bloodlord

Sorceries
4 Thoughtseize

Basic Lands
14 Swamp

Lands
4 Castle Locthwain
4 Mutavault

Legendary Lands
1 Nykthos, Shrine to Nyx
1 Urborg, Tomb of Yawgmoth

Sideboard:
3 Leyline of the Void
1 Cast Down
3 Noxious Grasp
1 Kalitas, Traitor of Ghet
1 Ashiok, Dream Render
1 Liliana, the Last Hope
1 Ob Nixilis Reignited
3 Duress
1 Legion's End