Mono Black Deck

[Nanocarter23]

Mono Black Deck 62 cards, 0 sideboard 23 {Swamp} 23 lands 1 {Guul Draz Assassin} 4 {Crypt Ghast} 3 {Vampire Nighthawk} 1 {Phyrexian Obliterator} 2 {Nightveil Specter} 3 {Desecration Demon} 1 {Oona, Queen of the Fae} 2 {Vampire Hexmage} 2 {Lord of the Void} 2 {Royal Assassin} 1 {Reaper from the Abyss} 1 {Kozilek, Butcher of Truth} 1 {Griselbrand} 24 creatures 1 {Profane Command} 1 {Liliana of the Dark Realms} 1 {Liliana Vess} 1 {Liliana of the Dark Realms} 1 {Go for the Throat} 2 {Consume Spirit} 1 {Liliana Vess} 1 {Army of the Damned} 1 {Praetor's Grasp} 1 {Diabolic Tutor} 4 {Dark Ritual} 15 other spells Sideboard Notes: Mono Black Deck Value

[Nanocarter23]

any ideas on improvement?

[abstractApathist]

{Dark Ritual} isn't modern legal.