1 color B

Click here for visual deck (with images)
Click here for my EDH Commander decks
 
• Devotion to black
• Swamp matters (number of swamps, tutor for swamps, etc.)
• Black pitch spells
 
Mana Acceleration (12): General (1): Spells (26): Sideboard (Omitted/Cut card ideas):
1 Caged Sun 1 Tymaret, Chosen from Death 1 Lashwrithe 1 Grief
1 Charcoal Diamond   1 Nightmare Lash 1 Midnight Banshee
1 Gauntlet of Power Creatures (25): 1 Bolas's Citadel 1 Veilborn Ghoul
1 Heraldic Banner 1 Abhorrent Overlord 1 Cauldron's Gift 1 Vilis, Broker of Blood
1 Jet Medallion 1 Ascendant Evincar 1 Contagion 1 Chancellor of the Dross
1 Nyx Lotus 1 Ayara, First of Locthwain 1 Corrupt 1 Defile
1 Paradise Plume 1 Baleful Force 1 Dark Prophecy 1 Ring of Xathrid
1 Unstable Obelisk 1 Blight-Breath Catoblepas 1 Dark Triumph 1 Corrosive Mentor
1 Black Market 1 Crowd of Cinders 1 Drag to the Underworld 1 Disciple of Phenax
1 Crypt Ghast 1 Dakmor Sorceress 1 Dread Presence 1 Nightshade Assassin
1 Magus of the Coffers 1 Erebos, Bleak-Hearted 1 Force of Despair 1 Nightshade Seer
1 Nirkana Revenant 1 Erebos, God of the Dead 1 Foreboding Fruit 1 Scent of Nightshade
  1 Gray Merchant of Asphodel 1 Hecatomb 1 Dread
Lands (36): 1 Guul Draz Overseer 1 Horror of Horrors 1 Demon of Dark Schemes
1 Cabal Coffers 1 Korlash, Heir to Blackblade 1 Liliana of the Dark Realms 1 Mikaeus, the Unhallowed
1 Cabal Stronghold 1 K'rrik, Son of Yawgmoth 1 Mutilate 1 Demon's Horn
1 Castle Locthwain 1 Liliana's Shade 1 Necropotence 1 Dross Golem
1 Crypt of Agadeem 1 Marshmist Titan 1 Nightmare Incursion 1 Fang Skulkin
1 Everglades 1 Mogis's Marauder 1 Sanguimancy 1 Shrine of Limitless Power
1 Leechridden Swamp 1 Nightmare 1 Sickening Shoal 1 Staff of the Death Magus
1 Myriad Landscape 1 Paragon of Open Graves 1 Snuff Out 1 Throne of Bone
1 Nykthos, Shrine to Nyx 1 Reiver Demon 1 Sorin's Vengeance 1 Bad Moon
1 Thawing Glaciers 1 Shadow Alley Denizen 1 Soul Spike 1 Dread Charge
1 War Room 1 Sima Yi, Wei Field Marshal 1 Spinning Darkness 1 Locthwain Paladin
1 Witch's Cottage 1 Squelching Leeches 1 Strands of Night 1 Martyr of Bones
24 Swamp 1 Umbra Stalker 1 Tendrils of Corruption 1 Merrow Bonegnawer
1 Sol Ring 1 Underworld Hermit   1 Purraj of Urborg
  1 Xiahou Dun, the One-Eyed   1 Unmask