R/W/B Midrange. Opinions??

[Thisonecomes]

Creatures:
Aurelia, the Warleader x2
Blood Baron of Viskopa x3
Boros Reckoner x4
Obzedat, Ghost Council x2
Ogre Battledriver x4

Instants/Sorceries:
Blasphemous Act x2
Doom Blade x2
Dreadbore x3
Lingering Souls x4
Muzzium Mortars x2
Rakdos's Return x1
Warleader's Helix x4

Enchantments:
Assemble the Legion x2
Underworld Connections x1

Land:
Blood Crypt x4
Clifftop retreat x3
Dragonskull Summit x4
Godless Shrine x4
Isolated Chapel x4
Mountain x1
Sacred Foundry x4