1 Aether Spellbomb (MRD) 141
1 Arcum's Astrolabe (PLIST) 220
4 Etherium Sculptor (EOC) 72
4 Flood of Tears (M20) 59
1 Foundry Inspector (KLD) 215
1 Ghirapur Aether Grid (ORI) 148
1 Glimmervoid (MRD) 281
4 Goblin Engineer (TSR) 345
1 Golem's Heart (SOM) 161
1 Grinding Station (5DN) 127
4 Herbal Poultice (LRW) 257
4 Ichor Wellspring (MBS) 110
22 Island (TLA) 283
1 Merchant's Dockhand (AER) 163
1 Metalwork Colossus (KLD) 222
1 Mind Stone (FIC) 353
1 Mirrodin Besieged (MH1) 57
1 Mox Opal (SOM) 179
4 Myr Retriever (PLIST) 203
1 Myr Sire (MBS) 116
1 Mystic Forge (PIP) 236
4 Omniscience (FDN) 161
1 Paradoxical Outcome (KLD) 60
1 Prismatic Vista (SPG) 38
1 Pyrite Spellbomb (MRD) 232
1 Riddlesmith (SOM) 40
1 Scalding Tarn (ZEN) 223
4 Scrap Trawler (AER) 175
4 Servo Schematic (AER) 176
1 Shimmer Myr (MBS) 129
1 Snow-Covered Island (KHM) 278
1 Snow-Covered Mountain (KHM) 283
1 Springleaf Drum (ECL) 260
1 Sunbird's Invocation (XLN) 165
1 Sword of the Meek (FUT) 165
1 Thopter Foundry (ARB) 133
1 Unwinding Clock (NPH) 164
1 Urza, Lord High Artificer (CMM) 130
4 Welding Jar (MRD) 274
1 Whir of Invention (AER) 49
4 Workshop Assistant (KLD) 241

4 Banishing Knack (EVE) 17
4 Battered Golem (5DN) 106
4 Cogworker's Puzzleknot (KLD) 201
1 Dovin, Grand Arbiter (RNA) 167
4 Efficient Construction (AER) 33
1 Mycosynth Golem (5DN) 137
4 Nettle Drone (BFZ) 131
4 Retraction Helix (BNG) 49
4 Sai, Master Thopterist (M19) 69