4 Ancient Den
4 Glimmervoid
4 Seat of the Synod
4 Urza's Mine
4 Urza's Power Plant
4 Urza's Tower
4 Darksteel Juggernaut
4 Etherium Sculptor
4 Golem Artisan
4 Howling Mine
4 Master of Etherium
4 Mycosynth Golem
4 Ornithopter
4 Phyrexian Walker
4 Silver Myr
4 Steel Overseer
4 Walking Archive
Sideboard: