4 Ancient Den
4 Goldmire Bridge
4 Foundry Assembler
4 Frogmite
2 Lens Flare
4 Lotus Petal
4 Myr Enforcer
4 Ornithopter
4 Phyrexian Walker
3 Scale of Chiss-Goria
4 Sentinel's Eyes
4 Shield Sphere
4 Solid Footing
3 Tooth of Chiss-Goria
4 Tormod's Crypt
4 Welding Jar
Sideboard:
4 Arcbound Mouser
4 Blacksmith's Skill
3 Fragmentize
4 Gut Shot