Dragon (Non-Legendary) [Tribal]

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This is a 39 card sub-deck. It is added to the 68 card Main Tribal Deck. Remove the 6 creatures there, and replace the general with Scion of the Ur-Dragon.
 
Mana / Mana Accel. (6): General (1): Spells (3): Sideboard (Omitted/Cut card ideas):
1 Blood Crypt 1 Scion of the Ur-Dragon 1 Crucible of Fire 1 Teeka's Dragon
1 Steam Vents   1 Dragon Roost 1 Kaalia of the Vast
1 Stomping Ground Creatures (29): 1 Dragonstorm 1 Broodmate Dragon
1 Sacred Foundry 1 Clockwork Dragon   1 Spellbound Dragon
1 Lotus Guardian 1 Draco   1 Viashivan Dragon
1 Dragonspeaker Shaman 1 Steel Hellkite   1 Furyborn Hellkite
  1 Dragon Broodmother   1 Balefire Dragon
  1 Hellkite Overlord   1 Shivan Hellkite
  1 Vampiric Dragon   1 Hoarding Dragon
  1 Catacomb Dragon   1 Brimstone Dragon
  1 Ebon Dragon   1 Ancient Hellkite
  1 Cloud Dragon   1 Sarkhan Vol
  1 Mist Dragon   1 Sarkhan the Mad
  1 Quicksilver Dragon   1 Volcanic Dragon
  1 Canopy Dragon   1 Hellkite Igniter
  1 Bogardan Hellkite   1 Dragon Tyrant
  1 Dragon Mage   1 Crimson Hellkite
  1 Flameblast Dragon   1 Mordant Dragon
  1 Hellkite Charger   1 Predator Dragon
  1 Hoard-Smelter Dragon   1 Shivan Dragon
  1 Imperial Hellkite   1 Henge Guardian
  1 Kilnmouth Dragon   1 Tek
  1 Knollspine Dragon   1 Firestorm Hellkite
  1 Moonveil Dragon   1 Hellkite Hatchling
  1 Scourge of Kher Ridges   1 Thunder Dragon
  1 Scourge of Valkas   1 Two-Headed Dragon
  1 Stormbreath Dragon   1 Furnace Whelp
  1 Thundermaw Hellkite   1 Dragonmaster Outcast
  1 Utvara Hellkite   1 Rimescale Dragon
  1 Alabaster Dragon   1 Zodiac Dragon
  1 Eternal Dragon    
  1 Pearl Dragon    
      1 Hunted Dragon
      1 Lightning Dragon
      1 Nalathni Dragon
      1 Pardic Dragon
      1 Rakdos Pit Dragon
      1 Rathi Dragon
      1 Shichifukujin Dragon
      1 Worldgorger Dragon
      1 Elder Land Wurm
      1 Exalted Dragon