How can you create a combo with Peregrine Drake, Meticulous Excavation, Elesh Norn, Mother of Machines?
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[START OF COMBO]This combo can be formed with Peregrine Drake, Meticulous Excavation, Elesh Norn, Mother of Machines

Color identity: WU
Mana cost: 
Steps:
  1. Activate up to five lands you control by tapping them, adding at least {3}{W}{U}.
  2. Cast Peregrine Drake by paying {4}{U}.
  3. Peregrine Drake enters the battlefield, triggering its ability twice.
  4. Resolve the first trigger, untapping up to five lands.
  5. Activate up to five lands you control by tapping them, adding at least {3}{W}{U}.
  6. Resolve the second Peregrine Drake trigger, untapping up to five lands.
  7. Activate Meticulous Excavation by paying {2}{W}, returning Peregrine Drake from the battlefield to your hand.
  8. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite mana lands you control can produce
  - Infinite storm count
  - Infinite untap of lands you control[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Peregrine Drake must be in your hand
  - Meticulous Excavation must be on the battlefield
  - Elesh Norn, Mother of Machines must be on the battlefield
  - You control up to five lands that can tap to produce at least {3}{W}{U}.
[END OF COMBO PREREQUISITES]
assistant