How can you create a combo with Yarok, the Desecrated, Endless Sands, Peregrine Drake, Molderhulk?
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[START OF COMBO]This combo can be formed with Yarok, the Desecrated, Endless Sands, Peregrine Drake, Molderhulk

Color identity: BGU
Mana cost: {6}{U}
Steps:
  1. Activate Endless Sands's second ability by tapping it and paying {2}, exiling Molderhulk.
  2. Cast Peregrine Drake by paying {4}{U}.
  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 {4}.
  6. Activate Endless Sands's second ability by tapping it and paying {2}, 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 {4}.
  9. Activate Endless Sands's last ability by tapping it, paying {4}, and sacrificing it, returning Peregrine Drake and Molderhulk from exile to the battlefield.
  10. When Molderhulk enters the battlefield, it triggers itself twice.
  11. When Peregrine Drake enter the battlefield, it triggers itself twice.
  12. Resolve the first Molderhulk trigger, returning Endless Sands from your graveyard to the battlefield.
  13. Resolve the second Molderhulk 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 {2}, exiling Molderhulk.
  15. Repeat from step 4.[END OF COMBO STEPS]

Result:
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite mana lands you control can produce
  - Infinite untap of lands you control
  - Return all lands from your graveyard to the battlefield[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Yarok, the Desecrated must be on the battlefield
  - Endless Sands must be on the battlefield
  - Peregrine Drake must be in your hand
  - Molderhulk must be on the battlefield
  - You control at least four additional mana-producing lands.
[END OF COMBO PREREQUISITES]
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