20 Mountain
4 Dance with Devils
3 Devils' Playground
4 Embermaw Hellion
4 Flameblade Angel
4 Gibbering Fiend
4 Impact Tremors
4 Impetuous Devils
2 Make Mischief
2 Molten Vortex
2 Pyromancer's Goggles
4 Sin Prodder
3 Vessel of Volatility
Sideboard:
3 Collective Defiance
3 Incendiary Flow
3 Rending Volley
2 Roast
2 Structural Distortion
2 Tears of Valakut