B/r Midrange
A Modern deck, by Alexios_Komnenos
2nd place at a tournament in Magic Online on 2014-12-30

Maindeck:

Artifacts
1 Sword of War and Peace

Creatures
1 Gatekeeper of Malakir
4 Geralf's Messenger
4 Gray Merchant of Asphodel
4 Nightveil Specter
4 Pack Rat
4 Phyrexian Obliterator

Enchantments
2 Phyrexian Arena

Instants
3 Disfigure
2 Geth's Verdict
2 Terminate

Sorceries
3 Inquisition of Kozilek
2 Sign in Blood
1 Thoughtseize

Basic Lands
6 Swamp

Lands
4 Blood Crypt
4 Bloodstained Mire
4 Dragonskull Summit
4 Mutavault

Legendary Lands
1 Urborg, Tomb of Yawgmoth

Sideboard:
2 Relic of Progenitus
2 Boil
1 Dismember
1 Hero's Downfall
2 Rakdos Charm
2 Damnation
1 Dreadbore
2 Drown in Sorrow
2 Slaughter Games