Urza, Prince of Kroog + Turnabout + Mycosynth Lattice + Archaeomancer

Urza, Prince of Kroog

Turnabout

Mycosynth Lattice

Archaeomancer

How it works

1. Activate all mana-producing lands you control by tapping them, adding at least 10.
2. Cast Turnabout by paying 4, untapping all lands you control.
3. Activate Urza by paying 6, creating a token copy of Archaeomancer that is a 1/1 Soldier in addition to its other types.
4. When the Archaeomancer token enters the battlefield, it triggers, returning Turnabout to your hand from your graveyard.
5. Repeat.
6. If lands you control can tap to proudce at least 11, this combo nets infinite mana, which can be used to activate Urza's ability infinitely and/or cast Turnabout choosing its other modes.

This remarkable engine transforms the battlefield into a recursive symphony of mana and magic, anchored by Mycosynth Lattice turning every permanent into an artifact so Urza, Prince of Kroog can target them all. By paying six mana into Urza's active ability, you spin up a token copy of Archaeomancer, whose entry trigger immediately rescues Turnabout from your graveyard. Turnabout then untaps your lands—now generating excess mana thanks to the Lattice—allowing you to comfortably replay the sorcery, feed the loop, and eventually pump your entire artifact creature army with Urza's static +2/+2 anthem.