Yennett Tribal Sphinxes

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Tribal Sphinx deck. I'm trying to make this deck almost entirely Sphinxes, but eventually I'm going to have to cut some.
Can use Sharuum as general instead.
 
Mana Acceleration (2): General (1): Spells (0): Sideboard (Omitted/Cut card ideas):
1 Herald's Horn 1 Yennett, Cryptic Sovereign   1 Warrant // Warden
1 Urza's Incubator     1 Homarid Spawning Bed
  Creatures (61):   1 Hour of Need
Lands (36): 1 Sandstone Oracle   1 Kindred Dominance
1 Underground Sea 1 Azor, the Lawbringer   1 Cryptic Gateway
1 Tundra 1 Dream Trawler   1 Door of Destinies
1 Watery Grave 1 Enigma Sphinx   1 Kindred Discovery
1 Hallowed Fountain 1 Isperia the Inscrutable   1 Patriarch's Bidding
1 Sunken Ruins 1 Isperia, Supreme Judge   1 Belbe's Portal
1 Mystic Gate 1 Jelenn Sphinx   1 Vanquisher's Banner
1 Azorius Chancery 1 Magister Sphinx   1 Call to the Kindred
1 Dimir Aqueduct 1 Medomai the Ageless   1 Oblivion Stone
1 Orzhov Basilica 1 Sharuum the Hegemon   1 Mindslaver
1 Arcane Sanctum 1 Sphinx of New Prahv   1 Memory Jar
1 Agadeem's Awakening // Agadeem, the Undercrypt 1 Sphinx of the Steel Wind   1 Argentum Armor
1 Beyeen Veil // Beyeen Coast 1 Sphinx Sovereign   1 Debtors' Knell
1 Cavern of Souls 1 Sphinx Summoner   1 Thought Dissector
1 Command Tower 1 Alhammarret, High Arbiter   1 True Conviction
1 Hagra Mauling // Hagra Broodpit 1 Arbiter of the Ideal   1 Brilliant Ultimatum
1 Kabira Takedown // Kabira Plateau 1 Argent Sphinx   1 Obelisk of Urd
1 Makindi Stampede // Makindi Mesas 1 Atemsis, All-Seeing   1 Cover of Darkness
1 Malakir Rebirth // Malakir Mire 1 Belltower Sphinx   1 Helm of Obedience
1 Myriad Landscape 1 Cerulean Sphinx   1 Grinning Totem
1 Ondu Inversion // Ondu Skyruins 1 Chancellor of the Spires   1 Jester's Cap
1 Path of Ancestry 1 Citywatch Sphinx   1 Sorcerer's Strongbox
1 Sea Gate Restoration // Sea Gate, Reborn 1 Cloudreader Sphinx   1 Scourglass
1 Sejiri Shelter // Sejiri Glacier 1 Consecrated Sphinx   1 Sculpting Steel
1 Zof Consumption // Zof Bloodbog 1 Conundrum Sphinx   1 Phyrexian Metamorph
2 Swamp 1 Curator of Mysteries   1 Copper Gnomes
7 Island 1 Dream Eater   1 Scarecrone
2 Plains 1 Eligeth, Crossroads Augur   1 Snake Basket
1 Sol Ring 1 Enigma Thief   1 Codex Shredder
  1 Glyph Keeper   1 Thopter Foundry
  1 Goliath Sphinx   1 Eye of Ramos
  1 Guardian of Tazeem   1 Skull of Ramos
  1 Horizon Scholar   1 Tooth of Ramos
  1 Inspired Sphinx    
  1 Jwar Isle Avenger    
  1 Master of Predicaments    
  1 Master of Winds    
  1 Ominous Sphinx    
  1 Ormos, Archive Keeper    
  1 Prognostic Sphinx    
  1 Rescuer Sphinx    
  1 Riddlemaster Sphinx    
  1 Scholar of the Lost Trove    
  1 Serra Sphinx    
  1 Sharding Sphinx    
  1 Sphinx Ambassador    
  1 Sphinx Mindbreaker    
  1 Sphinx of Enlightenment    
  1 Sphinx of Foresight    
  1 Sphinx of Jwar Isle    
  1 Sphinx of Lost Truths    
  1 Sphinx of Magosi    
  1 Sphinx of the Chimes    
  1 Sphinx of the Final Word    
  1 Sphinx of the Second Sun    
  1 Sphinx of Uthuun    
  1 Unesh, Criosphinx Sovereign    
  1 Vexing Sphinx    
  1 Windreader Sphinx    
  1 Witness of Tomorrows    
  1 Petra Sphinx