Mono-Black Vampires
A Pioneer deck, by Chris Kvartek
7th place at a tournament on 2020-03-21

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
1 Grasp of Darkness

Legendary Creatures
3 Kalitas, Traitor of Ghet

Legendary Planeswalkers
4 Sorin, Imperious Bloodlord

Sorceries
4 Thoughtseize

Basic Lands
15 Swamp

Lands
4 Castle Locthwain
4 Mutavault

Legendary Lands
1 Urborg, Tomb of Yawgmoth

Sideboard:
2 Damping Sphere
3 Leyline of the Void
2 Grasp of Darkness
1 Liliana, the Last Hope
1 Agonizing Remorse
3 Duress
3 Infinite Obliteration