Yarok, the Desecrated, Endless Sands, Peregrine Drake, and Quarry Beetle

Prerequisites

• Yarok, the Desecrated on the battlefield
• Endless Sands on the battlefield
• Peregrine Drake in hand
• Quarry Beetle on the battlefield
• available

Steps

1. Activate Endless Sands's second ability by tapping it and paying , exiling Quarry Beetle
2. Cast Peregrine Drake by paying
3. Peregrine Drake enters the battlefield, triggering itself twice
4. Resolve the first Peregrine Drake trigger, untapping Endless Sands and up to four other lands
5. Activate your other lands by tapping them, adding at least
6. Activate Endless Sands's second ability by tapping it and paying , exiling Peregrine Drake
7. Resolve the second Peregrine Drake trigger, untapping Endless Sands and up to four other lands
8. Activate your other lands by tapping them, adding at least
9. Activate Endless Sands's last ability by tapping it, paying , and sacrificing it, returning Peregrine Drake and Quarry Beetle from exile to the battlefield
10. When Quarry Beetle enters the battlefield, it triggers itself twice
11. When Peregrine Drake enter the battlefield, it triggers itself twice
12. Resolve the first Quarry Beetle trigger, returning Endless Sands from your graveyard to the battlefield
13. Resolve the second Quarry Beetle trigger, returning up to one target land of your choice from your graveyard to the battlefield
14. Activate Endless Sands's second ability by tapping it and paying , exiling Quarry Beetle
15. Repeat from step 4

Results

• Infinite ETB
• Infinite LTB
• Infinite mana lands you control can produce
• Infinite untap of lands you control
• Return all lands from your graveyard to the battlefield