Yawgmoth

Click here for visual deck (with images)
Click here for my EDH Commander decks
 
• Undying creatures (can use Yawgmoth to remove the +1/+1 counter and repeat)
• Whenever a creature dies... triggers
 
Mana Acceleration (12): General (1): Spells (14): Sideboard (Omitted/Cut card ideas):
1 Burnished Hart 1 Yawgmoth, Thran Physician 1 Deathrender 1 Grimoire of the Dead
1 Caged Sun   1 Desecrated Tomb 1 Sudden Spoiling
1 Gauntlet of Power Creatures (37): 1 Gate to the Afterlife 1 Eldrazi Monument
1 Gilded Lotus 1 Karn, Silver Golem 1 Genesis Chamber 1 Blowfly Infestation
1 Solemn Simulacrum 1 Pentavus 1 Illusionist's Bracers 1 Glaring Spotlight
1 Thought Vessel 1 Soul of New Phyrexia 1 Lightning Coils  
1 Thran Dynamo 1 Thopter Squadron 1 Scour from Existence  
1 Unstable Obelisk 1 Toymaker 1 Black Market  
1 Worn Powerstone 1 Triskelavus 1 Dark Prophecy  
1 Crypt Ghast 1 Blood Artist 1 Dictate of Erebos  
1 Magus of the Coffers 1 Butcher Ghoul 1 Grave Betrayal  
1 Nirkana Revenant 1 Butcher of Malakir 1 Grave Pact  
  1 Carnifex Demon 1 Liliana, Dreadhorde General  
Lands (36): 1 Deathgreeter 1 Open the Graves  
1 Arcane Lighthouse 1 Dross Harvester    
1 Detection Tower 1 Endling    
1 Cabal Coffers 1 Endrek Sahr, Master Breeder    
1 Cabal Stronghold 1 Evernight Shade    
1 Myriad Landscape 1 Falkenrath Noble    
1 Nykthos, Shrine to Nyx 1 Geralf's Messenger    
1 Reliquary Tower 1 Grim Haruspex    
1 Thawing Glaciers 1 Harvester of Souls    
27 Swamp 1 Midnight Reaper    
1 Sol Ring 1 Mikaeus, the Unhallowed    
  1 Necroskitter    
  1 Nightmare Shepherd    
  1 Ogre Slumlord    
  1 Pawn of Ulamog    
  1 Pitiless Plunderer    
  1 Sifter of Skulls    
  1 Sightless Ghoul    
  1 Skirge Familiar    
  1 Smothering Abomination    
  1 Sorceress Queen    
  1 Syr Konrad, the Grim    
  1 Thieving Amalgam    
  1 Vengeful Vampire    
  1 Vindictive Vampire    
  1 Xenic Poltergeist    
  1 Zulaport Cutthroat