Exava Counters

Click here for visual deck (with images)
Click here for my EDH Commander decks
 
Pretty simple deck involving +1/+1 counters and Exava.
 
Mana Acceleration (12): General (1): Spells (16): Sideboard (Omitted/Cut card ideas):
1 Astral Cornucopia 1 Exava, Rakdos Blood Witch 1 Angelheart Vial 1 Solarion
1 Burnished Hart   1 Animation Module 1 Serum Tank
1 Caged Sun Creatures (35): 1 Contagion Clasp 1 Mikaeus, the Unhallowed
1 Coalition Relic 1 Colossus of Akros 1 Contagion Engine 1 Power Conduit
1 Commander's Sphere 1 Endless One 1 Mind's Eye 1 Ring of Xathrid
1 Everflowing Chalice 1 Hangarback Walker 1 Scour from Existence 1 Ring of Valkas
1 Gilded Lotus 1 Mindless Automaton 1 Temporal Aperture 1 Mephidross Vampire
1 Rakdos Signet 1 Pentavus 1 Feast on the Fallen 1 Flesh Carver
1 Sword of the Animist 1 Tetravus 1 Grave Betrayal 1 Ashling the Pilgrim
1 Thran Dynamo 1 Thopter Squadron 1 Phyrexian Arena 1 Amok
1 Unstable Obelisk 1 Triskelavus 1 Retribution of the Ancients 1 Steel Overseer
1 Worn Powerstone 1 Triskelion 1 Unspeakable Symbol 1 Stoneshock Giant
  1 Walking Ballista 1 Ion Storm 1 Ruins of Oran-Rief
Lands (36): 1 Cryptborn Horror 1 Outpost Siege 1 Blade of the Bloodchief
1 Badlands 1 Deathbringer Thoctar 1 Vance's Blasting Cannons 1 Preyseizer Dragon
1 Blood Crypt 1 Grenzo, Dungeon Warden 1 Vandalblast  
1 Smoldering Marsh 1 Ob Nixilis, the Fallen    
1 Graven Cairns 1 Olivia Voldaren    
1 Dragonskull Summit 1 Vampiric Dragon    
1 Command Tower 1 Aetherborn Marauder    
1 Flamekin Village 1 Dark Impostor    
1 Myriad Landscape 1 Drakestown Forgotten    
1 Nykthos, Shrine to Nyx 1 Drana, Liberator of Malakir    
1 Opal Palace 1 Kalitas, Traitor of Ghet    
1 Spinerock Knoll 1 Maga, Traitor to Mortals    
1 Thawing Glaciers 1 Marionette Master    
12 Swamp 1 Mer-Ek Nightblade    
11 Mountain 1 Necropolis Regent    
1 Sol Ring 1 Noosegraf Mob    
  1 Patron of the Vein    
  1 Chaos Imps    
  1 Furyborn Hellkite    
  1 Hamletback Goliath    
  1 Ignition Team    
  1 Rabble-Rouser    
  1 Rage Forger    
  1 Rock Hydra    
  1 War Elemental