20 Mountain
1 Chandra, Fire of Kaladesh // Chandra, Roaring Flame
1 Commune with Lava
1 Crater's Claws
4 Dragon Fodder
1 Exquisite Firecraft
4 Fiery Impulse
1 Goblinslide
4 Hordeling Outburst
1 Impact Tremors
2 Ire Shaman
1 Jeering Instigator
2 Lightning Berserker
2 Mardu Scout
2 Monastery Swiftspear
4 Roast
1 Rogue's Gloves
2 Titan's Strength
1 Wild Slash
2 Zurgo Bellstriker
Sideboard:
1 Collateral Damage
2 Goblin Heelcutter
1 Goblinslide
2 Lightning Berserker
1 Looming Spires
2 Outnumber
1 Rending Volley
1 Rogue's Gloves
1 Vaultbreaker
1 Wild Slash