4 Aether Hub
4 Arch of Orazca
2 Endless Sands
3 Inventors' Fair
4 Island
2 Plains
4 Zhalfirin Void
1 Electrostatic Pummeler
4 Era of Innovation
4 Filigree Familiar
2 Foundry Inspector
3 Hope of Ghirapur
2 Karn, Scion of Urza
1 Mechanized Production
3 Mishra's Self-Replicator
4 Powerstone Shard
4 Scrap Trawler
2 Teshar, Ancestor's Apostle
2 The Antiquities War
3 Walking Ballista
2 Workshop Assistant
Sideboard:
1 Chief of the Foundry