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