Mono-Black Control/Rats

Lands (23)
21 Swamp
2 Barren Moor

Creatures (15)
4 Ravenous Rats
3 Chittering Rats
2 Crypt Rats
4 Phyrexian Rager
4 Liliana's Specter

Instants (14)
2 Disfigure
2 Echoing Decay
4 Geth's Verdict
2 Unmake
4 Tendrils of Corruption

Sorceries (8)
4 Corrupt
4 Sign In Blood

Sideboard (15)
2 Nausea
1 Festercreep
1 Grim Harvest
2 Echoing Decay
3 Duress
2 Cremate
2 Doom Blade
2 Okiba-Gang Shinobi