1 Ancient Den
1 Darksteel Citadel
1 Great Furnace
1 Inventors' Fair
1 Karn's Bastion
1 Monumental Henge
1 Reliquary Tower
1 Seat of the Synod
1 Treasure Vault
1 Urza's Saga
1 Alibou, Ancient Witness
1 Anointed Procession
1 Ashnod's Altar
1 Bronze Guardian
1 Brudiclad, Telchor Engineer
1 Caretaker's Talent
1 Cayth, Famed Mechanist
1 Chief of the Foundry
1 Darksteel Juggernaut
1 Delete
1 Drafna, Founder of Lat-Nam
1 Efficient Construction
1 Encroaching Mycosynth
1 Enlightened Tutor
1 Enthusiastic Mechanaut
1 Etherium Sculptor
1 Fabricate
1 Forensic Gadgeteer
1 Goblin Bombardment
1 Idyllic Tutor
1 Impact Tremors
1 Jhoira, Weatherlight Captain
1 Jhoira's Familiar
1 Kuldotha Forgemaster
1 Losheel, Clockwork Scholar
1 Master of Etherium
1 Masterful Replication
1 Mechanized Production
1 Mirrodin Besieged
1 Mycosynth Lattice
1 Myr Battlesphere
1 Organic Extinction
1 Path to Exile
1 Phyrexian Altar
1 Research Thief
1 Retrofitter Foundry
1 Rootborn Defenses
1 Saheeli, Filigree Master
1 Saheeli, the Gifted
1 Sai, Master Thopterist
1 Scrap Trawler
1 Season of Weaving
1 Sentinel Sarah Lyons
1 Sharding Sphinx
1 Shimmer Myr
1 Simulacrum Synthesizer
1 Skullclamp
1 Solemn Simulacrum
1 Stroke of Midnight
1 Swiftfoot Boots
1 Swords to Plowshares
1 Tempered Steel
1 Tezzeret, Artifice Master
1 Thopter Engineer
1 Thopter Spy Network
1 Thought Vessel
1 Threefold Thunderhulk
1 Transplant Theorist
1 Unbreakable Formation
1 Urza, Prince of Kroog
1 Wake the Past
1 Workshop Elders
Sideboard:
1 Arcane Signet
1 Austere Command
1 Darksteel Forge
1 Foundry Inspector
1 Goblin Engineer
1 Idol of Oblivion
1 Krark-Clan Ironworks
1 Lightning Greaves
1 Merchant Scroll
1 Meteor Golem
1 Mystical Tutor
1 Reckless Fireweaver
1 Sol Ring
1 Thousand Moons Smithy // Barracks of the Thousand