Dash

Click here for visual deck (with images)
Click here for my EDH Commander decks
 
• Dash creatures: Cast them with Dash ability, and let them bounce every turn. You don't have to actually attack.
• ETB / LTB / "When you cast..." triggers.
• Make creature spells cost less
• Wraths (my creatures are always bouncing and aren't there)
• Black could be removed (making the deck mono-red), with one of these as commander: Ragavan, Zurgo Bellstriker, or Purphoros.
 
Mana Acceleration (12): General (1): Spells (21): Sideboard (Omitted/Cut card ideas):
1 Bontu's Monument 1 Kolaghan, the Storm's Fury 1 Aetherflux Reservoir 1 Complex Automaton
1 Caged Sun   1 Minion Reflector 1 Thopter Assembly
1 Cloud Key Creatures (30): 1 Oketra's Monument 1 Razing Snidd
1 Hazoret's Monument 1 Ancestral Statue 1 Shrine of Burning Rage 1 Skull Collector
1 Paradise Plume 1 Boltwing Marauder 1 Tome of the Guildpact 1 Glitterfang
1 Planar Gate 1 Lava Zombie 1 Damnation 1 Grinning Ignus
1 Seal of the Guildpact 1 Alesha's Vanguard 1 Deadly Tempest 1 Oni of Wild Places
1 Semblance Anvil 1 Ambuscade Shaman 1 Decree of Pain 1 Viashino Sandscout
1 Stone Calendar 1 Kolaghan Skirmisher 1 Necrotic Hex 1 Viashino Sandstalker
1 The Immortal Sun 1 Mardu Shadowspear 1 Blasphemous Act 1 Ilharg, the Raze-Boar
1 Unstable Obelisk 1 Mardu Strike Leader 1 Flameshadow Conjuring 1 Norin the Wary
1 Birgi, God of Storytelling // Harnfel, Horn of Bounty 1 Pitiless Horde 1 Furious Assault 1 Veilstone Amulet
  1 Reckless Imp 1 Impact Tremors 1 Nightmare Unmaking
Lands (36): 1 Sengir Nosferatu 1 Leyline of Lightning 1 Death Match
1 Badlands 1 Archwing Dragon 1 Lightning Cloud 1 Dust Stalker
1 Blood Crypt 1 Flamekin Herald 1 Mirror March 1 Rolling Earthquake
1 Smoldering Marsh 1 Flamerush Rider 1 Onslaught 1 Kefnet's Monument
1 Canyon Slough 1 Goblin Heelcutter 1 Outpost Siege 1 Electropotence
1 Graven Cairns 1 Hamletback Goliath 1 Sarkhan's Unsealing 1 Vedalken Orrery
1 Rakdos Carnarium 1 Kolaghan Forerunners 1 Sunbird's Invocation 1 Door of Destinies
1 Agadeem's Awakening // Agadeem, the Undercrypt 1 Lightning Berserker 1 Warstorm Surge 1 Mindmoil
1 Akoum Warrior // Akoum Teeth 1 Mardu Scout   1 Tablet of the Guilds
1 Blackbloom Rogue // Blackbloom Bog 1 Purphoros, God of the Forge   1 Paradox Engine
1 Command Tower 1 Ragavan, Nimble Pilferer   1 Cinder Pyromancer
1 Guildless Commons 1 Screamreach Brawler   1 Intimidator Initiate
1 Hagra Mauling // Hagra Broodpit 1 Shatterskull Charger   1 Orc Sureshot
1 Kazuul's Fury // Kazuul's Cliffs 1 Sprinting Warbrute   1 Smolder Initiate
1 Malakir Rebirth // Malakir Mire 1 Terror of the Peaks   1 Purraj of Urborg
1 Pelakka Predation // Pelakka Caverns 1 Vaultbreaker   1 Mountain Titan
1 Reliquary Tower 1 Viashino Cutthroat   1 Demon's Horn
1 Shatterskull Smashing // Shatterskull, the Hammer Pass 1 Viashino Sandsprinter   1 Dragon's Claw
1 Song-Mad Treachery // Song-Mad Ruins 1 Warbringer   1 Prism Ring
1 Spikefield Hazard // Spikefield Cave 1 Zurgo Bellstriker   1 Rhonas's Monument
1 Spinerock Knoll     1 Shrine of Limitless Power
1 Valakut Awakening // Valakut Stoneforge     1 Staff of the Death Magus
1 Winding Canyons     1 Staff of the Flame Magus
1 Zof Consumption // Zof Bloodbog     1 Carnival of Souls
3 Swamp     1 Spreading Plague
9 Mountain     1 Mana Echoes
1 Sol Ring     1 Pandemonium