4 Ichor Wellspring
2 Chromatic Sphere
4 Terrarion
4 Chromatic Star
4 Ancient Stirrings
2 Pyrite Spellbomb
4 Grove of the Burnwillows
4 Scrap Trawler
4 Darksteel Citadel
3 Engineered Explosives
4 Krark-Clan Ironworks
3 Inventors' Fair
2 Forest
4 Mox Opal
4 Mind Stone
2 Tendo Ice Bridge
3 Buried Ruin
3 Myr Retriever
Sideboard
2 Wurmcoil Engine
2 Defense Grid
2 Ghirapur Aether Grid
4 Nature's Claim
2 Guttural Response
3 Galvanic Blast