4 Color BURW (Yore-Tiller)

Click here for visual deck (with images)
Click here for my EDH Commander decks
 
This deck is built around Yore-Tiller Nephilim as a General. Yes, I know using a Nephilim as a General isn't legal, but it's an amusing deck nevertheless.
Huge creatures
Huge creatures with Cycling
Buried Alive / Mill self
Keep Yore-Tiller alive (or make him unblockable)
 
Mana Acceleration (7): General (1): Spells (1): Sideboard (Omitted/Cut card ideas):
1 Charmed Pendant 1 Yore-Tiller Nephilim 1 Break Through the Line 1 Murder of Crows
1 Chromatic Lantern     1 Mercurial Chemister
1 Coalition Relic Creatures (55):   1 Sphinx of the Steel Wind
1 Darksteel Ingot 1 Duplicant   1 Neurok Invisimancer
1 Fellwar Stone 1 Mindless Automaton    
1 Gilded Lotus 1 Soul of New Phyrexia    
1 Thran Dynamo 1 Angel of Despair    
  1 Ashen Rider    
Lands (36): 1 Gisela, Blade of Goldnight    
1 Underground Sea 1 Igneous Pouncer    
1 Badlands 1 Magister Sphinx    
1 Scrubland 1 Medomai the Ageless    
1 Volcanic Island 1 Niv-Mizzet, Dracogenius    
1 Tundra 1 Phenax, God of Deception    
1 Plateau 1 Prince of Thralls    
1 Watery Grave 1 Archfiend of Depravity    
1 Blood Crypt 1 Avatar of Woe    
1 Godless Shrine 1 Baleful Force    
1 Steam Vents 1 Lord of the Void    
1 Hallowed Fountain 1 Necropolis Regent    
1 Sacred Foundry 1 Overseer of the Damned    
1 Drowned Catacomb 1 Rune-Scarred Demon    
1 Isolated Chapel 1 Scion of Darkness    
1 Sulfur Falls 1 Sepulchral Primordial    
1 Glacial Fortress 1 Sewer Nemesis    
1 Dimir Aqueduct 1 Sheoldred, Whispering One    
1 Rakdos Carnarium 1 Twisted Abomination    
1 Orzhov Basilica 1 Visara the Dreadful    
1 Izzet Boilerworks 1 Archetype of Imagination    
1 Azorius Chancery 1 Chancellor of the Spires    
1 Boros Garrison 1 Clever Impersonator    
1 Sunken Ruins 1 Consecrated Sphinx    
1 Graven Cairns 1 Deadeye Navigator    
1 Fetid Heath 1 Deepchannel Mentor    
1 Cascade Bluffs 1 Diluvian Primordial    
1 Mystic Gate 1 Djinn of Wishes    
1 Rugged Prairie 1 Jin-Gitaxias, Core Augur    
1 Arcane Sanctum 1 Magus of the Jar    
1 Crumbling Necropolis 1 Mindscour Dragon    
1 Mystic Monastery 1 Sakashima the Impostor    
1 Nomad Outpost 1 Sphinx of Lost Truths    
1 Command Tower 1 Sphinx of Uthuun    
1 Rogue's Passage 1 Sun Quan, Lord of Wu    
1 Slayers' Stronghold 1 Thassa, God of the Sea    
1 Sol Ring 1 Dragon Mage    
  1 Ridge Rannet    
  1 Shrieking Mogg    
  1 Stalking Vengeance    
  1 Thundermare    
  1 Aegis Angel    
  1 Avacyn, Angel of Hope    
  1 Avacyn, Guardian Angel    
  1 Blazing Archon    
  1 Deathless Angel    
  1 Eternal Dragon    
  1 Luminate Primordial    
  1 Reya Dawnbringer    
  1 Yoked Plowbeast