How can you create a combo with Morophon, the Boundless, Cavern Harpy?
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[START OF COMBO]This combo can be formed with Morophon, the Boundless, Cavern Harpy

Color identity: WUBRG
Mana cost: 
Steps:
  1. Cast Cavern Harpy by paying {0}.
  2. Cavern Harpy enters the battlefield, returning itself from the battlefield to your hand.
  3. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Morophon, the Boundless must be on the battlefield
  - Cavern Harpy must be in your hand
  - "Harpy" or "Beast" chosen with Morophon.
[END OF COMBO PREREQUISITES]
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