Modern Girl: Mono-Black Discard (8rack) a.k.a. Liliana's 12-Pack of PAIN

Lands
17 Swamp
4 Mutavault
1 Urborg, Tomb of Yawgmoth

Creatures
4 Dark Confidant

Planeswalkers
4 Liliana of the Veil

Spells
4 Thoughtseize
4 The Rack
4 Shrieking Affliction
4 Bitterblossom
4 Wrench Mind
4 Victim of Night
4 Ensnaring Bridge
2 Relic of Progenitus

Sideboard (under construction)
Drown in Sorrow
Grafdigger's Cage
Surgical Extraction
Sadistic Sacrament
Deathmark