4 Ancient Den
4 Great Furnace
4 Island
4 Mountain
4 Plains
4 Seat of the Synod
3 Built to Last
3 Built to Smash
2 Darksteel Forge
3 Etherium Sculptor
3 Foundry Inspector
3 Master Transmuter
3 Mizzium Skin
3 Mycosynth Golem
4 Precursor Golem
4 Prototype Portal
3 Teleportal
2 Tempered Steel
Sideboard:
1 Built to Last
1 Built to Smash
2 Darksteel Forge
4 Mirrorworks
1 Mizzium Skin
2 Tempered Steel