Zedruu the Greathearted can lead a lot of decks, from control to politics, chaos to voltron. This is not one of those; this is a Magical Hack deck. The objective is to make use of terrible, corner case color or land based cards and make them more useful for the current battlefield. NOTE: this deck dies to Eldrazi, among a lot of other things. This is one of my lowest power deck by design, playing long games with most useful board states taking many turns to set up.
Ignore the Grindstone|Kaladesh Inventions, I was just tired of seeing it in my binder and I like the art. I used the unbanning of Painter's Servant as an excuse.
Zeduu: Urborg makes your lands Forests
Approximate Total Cost:
So, if the deck has low compatibility with Zeduu, why use her as the commander? The simple answer is that some of these effects are global and Urborg, Tomb of Yawgmoth is legendary. Through Zedruu, I can set everyone's lands to be Savai Triome while using Celestial Dawn to have only islands and have Karma punish my opponents. Zedruu also sets up the only infinite combo that I intend to use, Justice + Opalescence. Changing the color text on Justice to say white, then responding to it's trigger on something by gifting it to an opponent with Opalescence out creates a damage loop where Justice punishes it's new controller for the crime of punishing them.
Other "fun" synergies include using Tundra Kavu to turn Gaea's Cradle into a plains, then Quarum Trench Gnomes to permanently make it a Wastes. Alternatively, hack Unesh, Criosphinx Sovereign to trigger on dwarves entering the battlefield or Najeela, the Blade-Blossom to trigger from wizards.