Yarok, the Desecrated + Reset + Essence Flux + Archaeomancer

Yarok, the Desecrated

Reset

Essence Flux

Archaeomancer

How it works

1. During an opponent's turn, after their upkeep step, cast Reset by paying , untapping all lands you control.
2. Activate all mana-producing lands you control by tapping them, adding at least 1.
3. Cast Essence Flux by paying , blinking Archaeomancer.
4. Archaeomancer enters the battlefield, triggering its ability twice, targeting Essence Flux and Reset.
5. Resolve both of Archaeomancer's abilities, returning Essence Flux and Reset to your hand.
6. Repeat.