Decklist
Approximate Total Cost:
The deck doesn't have any interest in proper combo. It tries to win with a pile of tokens via Sai, Mirrodin Besieged, Efficient Construction and Sharding Sphinx, very cheap artifacts (further discounted by Mycosynth Golem), and then some shenanigans with Emry to keep everything running smoothly.
Cutesy stuff:
Voyager Staff lets you re-use Emry, and Emry lets you re-use Voyager Staff. Same with Aether Spellbomb, though it feels much slower.
Clock of Omens is pretty wild with lots of stuff once the tokens roll in. Metalworker, Retrofitter Foundry, Steel Overseer. Even something like Mystic Forge can do work if you untap it a bunch of times.