Specters

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Specter tribal deck.
"Whenever discard..." triggers
There is no legendary Specter, but Crosis (or Nicol Bolas) is at least on the discard theme.
 
Mana Acceleration (8): General (1): Spells (25): Sideboard (Omitted/Cut card ideas):
1 Burnished Hart 1 Crosis, the Purger 1 Door of Destinies 1 Cover of Darkness
1 Coalition Relic   1 Geth's Grimoire 1 Cruel Ultimatum
1 Gem of Becoming Creatures (30): 1 Memory Jar 1 Vesuvan Doppelganger
1 Gilded Lotus 1 Adaptive Automaton 1 Obelisk of Urd 1 Vesuvan Shapeshifter
1 Prismatic Geoscope 1 Metallic Mimic 1 Vanquisher's Banner 1 Specter's Wail
1 Thran Dynamo 1 Blazing Specter 1 Dire Undercurrents 1 Specter's Shroud
1 Worn Powerstone 1 Blizzard Specter 1 Nicol Bolas, Planeswalker 1 Spectral Prison
1 Urza's Incubator 1 Doomsday Specter 1 Whispering Madness 1 Sword of Feast and Famine
  1 Nightveil Specter 1 Bloodchief Ascension 1 Patriarch's Bidding
Lands (36): 1 Sedraxis Specter 1 Kindred Dominance 1 Sangromancer
1 Underground Sea 1 Abyssal Specter 1 Larceny 1 Spectral Searchlight
1 Badlands 1 Cairn Wanderer 1 Liliana's Caress  
1 Volcanic Island 1 Dread Specter 1 Megrim  
1 Watery Grave 1 Entropic Specter 1 Raiders' Wake  
1 Blood Crypt 1 Ghostly Changeling 1 Waste Not  
1 Steam Vents 1 Guul Draz Specter 1 Call to the Kindred  
1 Sunken Ruins 1 Hollow Specter 1 Distant Melody  
1 Graven Cairns 1 Hypnotic Specter 1 Kindred Discovery  
1 Cascade Bluffs 1 Liliana's Specter 1 Rite of Replication  
1 Crumbling Necropolis 1 Moonglove Changeling 1 Chandra Ablaze  
1 Command Tower 1 Myojin of Night's Reach 1 Mana Echoes  
1 Howltooth Hollow 1 Needle Specter 1 Reforge the Soul  
1 Path of Ancestry 1 Scythe Specter 1 Shared Animosity  
1 Reflecting Pool 1 Shimian Specter 1 Wheel of Fate  
1 Spinerock Knoll 1 Shrieking Specter 1 Wheel of Fortune  
7 Swamp 1 Silent Specter    
7 Island 1 Tainted Specter    
6 Mountain 1 Whispering Specter    
1 Sol Ring 1 Jace's Archivist    
  1 Magus of the Jar    
  1 Mistform Ultimus    
  1 Shapesharer    
  1 Taurean Mauler