Mono Black Devotion
A Standard deck, by David Daniel
4th place at a StarCityGames.com Invitational tournament in Las Vegas, Nevada on 2014-06-21

Maindeck:

Creatures
4 Desecration Demon (Not currently legal in Standard)
4 Gray Merchant of Asphodel (Not currently legal in Standard)
4 Lifebane Zombie (Not currently legal in Standard)
4 Pack Rat (Not currently legal in Standard)

Enchantments
4 Underworld Connections (Not currently legal in Standard)

Instants
1 Bile Blight (Not currently legal in Standard)
4 Devour Flesh (Not currently legal in Standard)
4 Hero's Downfall (Not currently legal in Standard)
1 Ultimate Price (Not currently legal in Standard)

Sorceries
4 Thoughtseize (Not currently legal in Standard)

Basic Lands
19 Swamp

Lands
4 Mutavault (Not currently legal in Standard)
3 Temple of Deceit (Not currently legal in Standard)

Sideboard:
1 Pithing Needle
1 Bile Blight (Not currently legal in Standard)
2 Dark Betrayal (Not currently legal in Standard)
4 Doom Blade (Not currently legal in Standard)
2 Erebos, God of the Dead (Not currently legal in Standard)
4 Duress
1 Read the Bones (Not currently legal in Standard)