1 Aetherflux Reservoir (KLD) 192
1 Arcane Denial (AL) 33
1 Artificer's Assistant (DOM) 44
1 Brainstorm (FCA) 28
1 Buried Ruin (M12) 224
1 Chief Engineer (M15) 47
1 Chief of the Foundry (KLD) 200
1 Chromatic Sphere (MRD) 151
1 Chromatic Star (10E) 314
1 Codex Shredder (RTR) 228
1 Command Tower (ECC) 59
1 Commander's Sphere (ECC) 139
1 Counterspell (FCA) 4
1 Dramatic Reversal (KLD) 44
1 Emry, Lurker of the Loch (EOC) 71
1 Etherium Sculptor (EOC) 72
1 Evolving Wilds (ECL) 264
1 Expedition Map (FDN) 724
1 Fabricate (M10) 52
1 Foundry Inspector (KLD) 215
1 Gilded Lotus (FDN) 725
1 Goblin Engineer (PLIST) 128
1 Gonti's Aether Heart (AER) 152
1 Grapeshot (TSP) 160
1 Great Furnace (EOC) 161
1 Herald of Kozilek (BFZ) 205
1 Highland Lake (M19) 252
1 Inventors' Fair (KLD) 247
1 Invoke the Firemind (GPT) 118
1 Iron Myr (SOM) 168
13 Island (ECL) 270
1 Isochron Scepter (MB2) 96
1 Izzet Boilerworks (GPT) 159
1 Izzet Locket (GRN) 238
1 Izzet Signet (TDC) 320
1 Jhoira, Weatherlight Captain (EOC) 118
1 Jhoira's Familiar (DOM) 220
1 Karn, Scion of Urza (DOM) 1
1 Karn's Temporal Sundering (DOM) 55
1 Laboratory Maniac (FCA) 30
1 Manifold Key (M20) 230
1 Memnite (SOM) 174
1 Mind Stone (FIC) 353
5 Mountain (ECL) 272
1 Mox Amber (DOM) 224
1 Myr Battlesphere (SOM) 180
1 Myr Retriever (MRD) 215
1 Mystic Forge (PIP) 236
1 Negate (FDN) 710
1 Niv-Mizzet, the Firemind (RVR) 467
1 Oblivion Stone (M3C) 303
1 Ophidian Eye (TSP) 70
1 Ornithopter (AER) 167
1 Padeem, Consul of Innovation (KLD) 59
1 Paradoxical Outcome (KLD) 60
1 Ponder (M12) 73
1 Propaganda (FIC) 268
1 Psychosis Crawler (MBS) 126
1 Rebuild (GU) 40
1 Reckless Fireweaver (KLD) 126
1 Reliquary Tower (M19) 254
1 Riddlesmith (SOM) 40
1 Saheeli Rai (KLD) 186
1 Saheeli, Sublime Artificer (WAR) 234
1 Sai, Master Thopterist (DRC) 82
1 Scrap Trawler (AER) 175
1 Seat of the Synod (EOC) 176
1 Sequestered Stash (KLD) 248
1 Shivan Reef (DMU) 255
1 Silver Myr (SOM) 202
1 Sol Ring (ECC) 58
1 Spellbook (10E) 343
1 Steel Hellkite (FDN) 681
1 Storm the Vault (RIX) 173
1 Swan Song (THS) 65
1 Swiftfoot Boots (FDN) 258
1 Terramorphic Expanse (DSK) 269
1 Terrarion (EMN) 201
1 The Antiquities War (DOM) 42
1 Thran Dynamo (BLC) 290
1 Trading Post (M14) 225
1 Trinket Mage (SOM) 48
1 Trophy Mage (AER) 48
1 Whir of Invention (AER) 49

1 Efficient Construction (AER) 33