Yarok, the Desecrated + Palinchron

Yarok, the Desecrated
Palinchron

Requires
Yarok, the Desecrated must be on the battlefield. Palinchron must be in hand. You control at least six mana-producing lands, two of which can produce at least u. Mana needed: 1
Steps
  1. Activate six lands by tapping them, adding at least 4uu.
  2. Cast Palinchron by paying 5uu.
  3. When Palinchron enters the battlefield, it triggers twice.
  4. Resolve the first trigger, untapping up to seven lands you control.
  5. Activate six lands by tapping them, adding at least 4uu.
  6. Resolve the second Palinchron trigger, untapping up to seven lands you control.
  7. Activate Palinchron by paying 2uu, returning it to your hand from the battlefield.
  8. Repeat.
Results
Infinite ETB. Infinite LTB. Infinite mana lands you control can produce. Infinite storm count. Infinite untap of lands you control.