20 Mountain
4 Chain Lightning
4 Fireblast
4 Flame Rift
4 Goblin Guide
4 Keldon Marauders
4 Lava Spike
4 Lightning Bolt
2 Magma Jet
3 Price of Progress
4 Rift Bolt
3 Sulfuric Vortex
Sideboard:
3 Ensnaring Bridge
3 Shattering Spree
3 Skullcrack
3 Surgical Extraction
3 Volcanic Fallout