B/R Midrange
A Modern deck, by IAMHEDONISM
2nd place at a tournament in Magic Online on 2014-09-22

Maindeck:

Creatures
4 Desecration Demon
2 Falkenrath Aristocrat
4 Pack Rat
4 Young Pyromancer

Instants
2 Doom Blade
4 Lightning Bolt
4 Terminate

Legendary Creatures
2 Tymaret, the Murder King

Sorceries
4 Inquisition of Kozilek
3 Sign in Blood
4 Thoughtseize

Basic Lands
2 Mountain
6 Swamp

Lands
2 Blackcleave Cliffs
3 Blood Crypt
2 Dragonskull Summit
4 Mutavault
2 Sulfurous Springs

Legendary Lands
2 Urborg, Tomb of Yawgmoth

Sideboard:
1 Gray Merchant of Asphodel
2 Lifebane Zombie
2 Vampire Nighthawk
2 Doom Blade
3 Pharika's Cure
2 Smash to Smithereens
3 Duress