Arcades Sabboth

Click here for visual deck (with images)
Click here for my EDH Commander decks
 
I tried to build an EDH deck specifically around each of the original Elder Dragons.
Toughness matters deck:
Increase toughness
Switch power/toughness
Deal damage to each creature
Gain life equal to toughness
 
Mana Acceleration (12): General (1): Spells (26): Sideboard (Omitted/Cut card ideas):
1 Coalition Relic 1 Arcades Sabboth 1 Akroma's Memorial 1 Animal Boneyard
1 Commander's Sphere   1 Colfenor's Urn 1 Fruit of the First Tree
1 Fellwar Stone Creatures (25): 1 Sword of the Paruns 1 Diamond Valley
1 Gilded Lotus 1 Myr Quadropod 1 Time Bomb 1 Always Watching
1 Unstable Obelisk 1 Volatile Rig 1 Angelic Shield 1 Serra's Blessing
1 Mirari's Wake 1 Dromoka, the Eternal 1 Aura Shards 1 Brave the Sands
1 Explosive Vegetation 1 Trostani, Selesnya's Voice 1 Bident of Thassa 1 Living Armor
1 Frontier Siege 1 Windreaver 1 Coastal Piracy 1 Life Chisel
1 Mana Reflection 1 Aquamoeba 1 Engulf the Shore 1 Archangel of Strife
1 Map the Wastes 1 Calcite Snapper 1 Mind Unbound 1 Kitsune Loreweaver
1 Skyshroud Claim 1 Consecrated Sphinx 1 Twisted Image 1 Dragonscale General
1 Zendikar Resurgent 1 Crookclaw Transmuter 1 Assault Formation 1 Scale Blessing
  1 Deepfathom Skulker 1 Cyclone 1 Worthy Cause
Lands (36): 1 Merfolk Thaumaturgist 1 Feed the Pack 1 Sandsteppe Mastodon
1 Tundra 1 Profaner of the Dead 1 Leyline of Vitality 1 Arashi, the Sky Asunder
1 Savannah 1 Scourge of Fleets 1 Sight of the Scalelords 1 Whirling Catapult
1 Tropical Island 1 Turtleshell Changeling 1 Spidersilk Armor 1 Vanguard's Shield
1 Hallowed Fountain 1 Abzan Beastmaster 1 Angelic Chorus 1 Anafenza, Kin-Tree Spirit
1 Temple Garden 1 Scourge of Skola Vale 1 Builder's Blessing  
1 Breeding Pool 1 Silklash Spider 1 Castle  
1 Mystic Gate 1 Sultai Flayer 1 Echoes of the Kin Tree  
1 Wooded Bastion 1 Tree of Redemption 1 Hold the Gates  
1 Flooded Grove 1 Angelic Field Marshal 1 Lumithread Field  
1 Glacial Fortress 1 Angelic Skirmisher 1 Parapet  
1 Sunpetal Grove 1 Blessed Orator 1 Proper Burial  
1 Hinterland Harbor 1 Heliod, God of the Sun 1 Wave of Reckoning  
1 Seaside Citadel 1 Oathsworn Giant    
1 Azorius Guildgate 1 Veteran Armorer    
1 Selesnya Guildgate      
1 Simic Guildgate      
1 Command Tower      
1 Gaea's Cradle      
1 Krosan Verge      
1 Miren, the Moaning Well      
1 Mosswort Bridge      
1 Reflecting Pool      
1 Windbrisk Heights      
4 Island      
4 Forest      
4 Plains      
1 Sol Ring