3 Chromatic Sphere
3 Engineered Explosives
2 Pyrite Spellbomb
4 Scrap Trawler
2 Myr Retriever
4 Krark-Clan Ironworks
4 Mind Stone
4 Ichor Wellspring
4 Terrarion
4 Chromatic Star
4 Mox Opal
1 Aether Hub
2 Forest
2 Spire of Industry
2 Inventors' Fair
3 Buried Ruin
4 Darksteel Citadel
4 Grove of the Burnwillows
4 Ancient Stirrings
Sideboard
1 Defense Grid
1 Galvanic Blast
3 Sai, Master Thopterist
3 Silence
3 Lightning Bolt
4 Nature's Claim