20 Mountain
4 Valakut, the Molten Pinnacle
4 Anger of the Gods
4 Arc Lightning
4 Comet Storm
4 Fanning the Flames
4 Fiery Emancipation
4 Lightning Bolt
4 Pyroclasm
4 Seething Song
4 Starstorm
Sideboard:
4 Furnace of Rath
4 Volcanic Fallout