Exava Counters

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Click here for my EDH Commander decks
 
Pretty simple deck involving +1/+1 counters and Exava.
 
Mana Acceleration (12): General (1): Spells (18): Sideboard (Omitted/Cut card ideas):
1 Astral Cornucopia 1 Exava, Rakdos Blood Witch 1 Angelheart Vial 1 Flesh Carver
1 Burnished Hart   1 Contagion Clasp 1 Ashling the Pilgrim
1 Caged Sun Creatures (33): 1 Contagion Engine 1 Amok
1 Coalition Relic 1 Colossus of Akros 1 Mind's Eye 1 Steel Overseer
1 Commander's Sphere 1 Endless One 1 Power Conduit 1 Stoneshock Giant
1 Everflowing Chalice 1 Hangarback Walker 1 Ring of Valkas 1 Ruins of Oran-Rief
1 Gilded Lotus 1 Mindless Automaton 1 Ring of Xathrid 1 Blade of the Bloodchief
1 Rakdos Signet 1 Pentavus 1 Scour from Existence 1 Preyseizer Dragon
1 Sword of the Animist 1 Solarion 1 Serum Tank  
1 Thran Dynamo 1 Tetravus 1 Temporal Aperture  
1 Unstable Obelisk 1 Thopter Squadron 1 Feast on the Fallen  
1 Worn Powerstone 1 Triskelavus 1 Grave Betrayal  
  1 Triskelion 1 Phyrexian Arena  
Lands (36): 1 Cryptborn Horror 1 Retribution of the Ancients  
1 Badlands 1 Deathbringer Thoctar 1 Unspeakable Symbol  
1 Blood Crypt 1 Grenzo, Dungeon Warden 1 Ion Storm  
1 Smoldering Marsh 1 Ob Nixilis, the Fallen 1 Outpost Siege  
1 Graven Cairns 1 Olivia Voldaren 1 Vandalblast  
1 Dragonskull Summit 1 Vampiric Dragon    
1 Command Tower 1 Dark Impostor    
1 Flamekin Village 1 Drakestown Forgotten    
1 Myriad Landscape 1 Drana, Liberator of Malakir    
1 Nykthos, Shrine to Nyx 1 Kalitas, Traitor of Ghet    
1 Opal Palace 1 Maga, Traitor to Mortals    
1 Spinerock Knoll 1 Mephidross Vampire    
1 Thawing Glaciers 1 Mer-Ek Nightblade    
12 Swamp 1 Mikaeus, the Unhallowed    
11 Mountain 1 Necropolis Regent    
1 Sol Ring 1 Chaos Imps    
  1 Furyborn Hellkite    
  1 Hamletback Goliath    
  1 Ignition Team    
  1 Rabble-Rouser    
  1 Rage Forger    
  1 Rock Hydra    
  1 War Elemental