Flash

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Click here for my EDH Commander decks
 
Theme deck involving all "Flash" cards.
Untap lands on other people's turns (Seedborn, Prophet, Reset)
Triggers on when you play spells (Maelstrom Nexus, Ephara, Faerie Tauntings)
 
Mana Acceleration (9): General (1): Spells / Non-Flash Creatures (23): Sideboard (Omitted/Cut card ideas):
1 Chromatic Lantern 1 Sliver Queen 1 Mind's Eye 1 Mistbind Clique
1 Coalition Relic   1 Ephara, God of the Polis 1 Snapcaster Mage
1 Commander's Sphere Flash Creatures (31): 1 Maelstrom Nexus 1 Hushwing Gryff
1 Fellwar Stone 1 Darksteel Sentinel 1 Prophet of Kruphix 1 Awakening
1 Worn Powerstone 1 Bounding Krasis 1 Blessing of Leeches 1 Bogardan Rager
1 Gilded Lotus 1 Fleetfeather Cockatrice 1 Dictate of Erebos 1 Twilight's Call
1 Mirari's Wake 1 Horizon Chimera 1 Faerie Tauntings 1 Glen Elendra Pranksters
1 Mana Reflection 1 Mystic Snake 1 Necromancy 1 Dreamspoiler Witches
1 Skyshroud Claim 1 Notion Thief 1 Ragged Veins 1 Leonin Bladetrap
  1 Surrak Dragonclaw 1 Breaking Wave 1 Shimmer Myr
Lands (36): 1 Wydwen, the Biting Gale 1 Dictate of Kruphix 1 Muck Drubb
1 Underground Sea 1 Draining Whelk 1 Mind Unbound 1 Deceiver Exarch
1 Tundra 1 Inspired Sprite 1 Mystical Teachings 1 Nephalia Seakite
1 Taiga 1 Jin-Gitaxias, Core Augur 1 Ophidian Eye 1 Dust Elemental
1 Savannah 1 Mizzium Meddler 1 Reset 1 Hixus, Prison Warden
1 Bayou 1 Pearl Lake Ancient 1 Teferi, Temporal Archmage 1 Restoration Angel
1 Tropical Island 1 Pestermite 1 Dictate of Karametra 1 Stonecloaker
1 Volcanic Island 1 Plaxmanta 1 Epic Proportions 1 Cloaked Siren
1 Watery Grave 1 Silumgar Sorcerer 1 Seedborn Muse 1 Crookclaw Transmuter
1 Hallowed Fountain 1 Spellstutter Sprite 1 Dictate of the Twin Gods 1 Faerie Harbinger
1 Stomping Ground 1 Teferi, Mage of Zhalfir 1 Ghitu Fire 1 Faerie Invaders
1 Temple Garden 1 Vendilion Clique 1 Dictate of Heliod 1 Scion of Oona
1 Overgrown Tomb 1 Venser, Shaper Savant 1 Rout 1 Sentinels of Glen Elendra
1 Breeding Pool 1 Voidmage Husher   1 Skyline Predator
1 Steam Vents 1 Caller of the Claw   1 Spire Monitor
1 Crumbling Necropolis 1 Cloudthresher   1 Boon Satyr
1 Arcane Sanctum 1 Bogardan Hellkite   1 Harbinger of the Tides
1 Savage Lands 1 Dualcaster Mage   1 Izzet Staticaster
1 Seaside Citadel 1 Angel of Salvation   1 Winged Coatl
1 Jungle Shrine 1 Angel of the Dire Hour   1 Havenwood Wurm
1 Opulent Palace 1 Aven Mindcensor   1 Briarhorn
1 Sandsteppe Citadel 1 Containment Priest   1 Haze Frog
1 Nomad Outpost 1 Masako the Humorless    
1 Frontier Bivouac 1 Seht's Tiger    
1 Mystic Monastery      
1 Sunken Ruins      
1 Mystic Gate      
1 Fire-Lit Thicket      
1 Wooded Bastion      
1 Twilight Mire      
1 Flooded Grove      
1 Cascade Bluffs      
1 Command Tower      
1 Exotic Orchard      
1 Gaea's Cradle      
1 Reflecting Pool      
1 Sol Ring