Red Burn

Click here for visual deck (with images)
Click here for my EDH Commander decks
 
No subtlety here: It's pretty much just tons of Fireballs.
It has a fair amount of mana ramp, but may need even more. I might go up to 20 mana ramp with this.
 
Mana Acceleration (15): General (1): Spells (38): Sideboard (Omitted/Cut card ideas):
1 Burnished Hart 1 Kumano, Master Yamabushi 1 Candelabra of Tawnos 1 Wild Ricochet
1 Caged Sun   1 Doubling Cube 1 Tower of Fortunes
1 Dreamstone Hedron Creatures (11): 1 Mirari 1 Argentum Armor
1 Everflowing Chalice 1 Steel Hellkite 1 Staff of Nin 1 Memory Jar
1 Extraplanar Lens 1 Ulamog, the Ceaseless Hunger 1 Sword of Kaldra 1 Reverberate
1 Gauntlet of Might 1 Akki Lavarunner 1 Banefire 1 Fork
1 Gauntlet of Power 1 Angrath's Marauders 1 Blaze 1 Wheel of Fortune
1 Primal Amulet 1 Dualcaster Mage 1 Bonfire of the Damned 1 Reforge the Soul
1 Pyromancer's Goggles 1 Embermaw Hellion 1 Burn from Within 1 Ulamog, the Infinite Gyre
1 Thran Dynamo 1 Fire Servant 1 Chandra, Flamecaller 1 Past in Flames
1 Unstable Obelisk 1 Hostility 1 Chandra, the Firebrand 1 Kozilek, Butcher of Truth
1 Worn Powerstone 1 Knollspine Dragon 1 Chandra, Torch of Defiance 1 Arcbond
1 Koth of the Hammer 1 Satyr Firedancer 1 Comet Storm 1 Ring of Three Wishes
1 Mana Flare 1 Soul-Scar Mage 1 Commune with Lava 1 Planar Portal
1 Mana Geyser   1 Crater's Claws 1 Paradise Plume
    1 Demonfire 1 Diviner's Wand
Lands (35):   1 Devil's Play 1 Staff of Domination
1 Myriad Landscape   1 Disintegrate 1 Hoard-Smelter Dragon
1 Spinerock Knoll   1 Fall of the Titans 1 Seer's Sundial
1 Temple of the False God   1 Fanning the Flames 1 Goblin Offensive
1 Terrain Generator   1 Fireball 1 Urza's Blueprints
1 Thawing Glaciers   1 Ghitu Fire 1 Skyship Weatherlight
1 Valakut, the Molten Pinnacle   1 Gratuitous Violence 1 Darksteel Forge
1 Vesuva   1 Increasing Vengeance 1 Basilisk Collar
26 Mountain   1 Insult // Injury 1 Sculpting Steel
1 Mana Crypt   1 Kaervek's Torch 1 Dragon Mage
1 Sol Ring   1 Lava Burst 1 Hoarding Dragon
    1 Meteor Blast 1 Mind's Eye
    1 Outpost Siege 1 Glacial Crevasses
    1 Ravaging Blaze 1 Mindmoil
    1 Red Sun's Zenith 1 Gamble
    1 Reiterate 1 Hematite Talisman
    1 Release the Gremlins 1 Heartstone
    1 Rolling Thunder 1 Wheel of Fate
    1 Sunbird's Invocation 1 Illuminated Folio
    1 Titan's Revenge 1 Red Mana Battery
    1 Vance's Blasting Cannons 1 Living Inferno
    1 Volcanic Geyser 1 Rage Thrower