4 Ancient Den
4 Darksteel Citadel
7 Island
4 Power Depot
4 Seat of the Synod
4 Enthusiastic Mechanaut
4 Master of Etherium
4 Mirrodin Besieged
4 Myr Scrapling
4 Organic Extinction
4 Ornithopter
2 Sai, Master Thopterist
4 Sol Ring
4 Steel Overseer
4 Urza, Prince of Kroog
Sideboard:
1 Ancient Stone Idol
1 Blitz Automaton
1 Colossus of Akros
1 Furnace Hellkite
1 Palladium Myr
1 Phyrexian Triniform
1 Salvation Colossus
1 Steel Hellkite
1 Steel Seraph
1 Unstable Glyphbridge // Sandswirl Wanderglyph
1 Woodcaller Automaton