How can you create a combo with Rograkh, Son of Rohgahh, Cloudstone Curio, Peregrine Drake?
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[START OF COMBO]This combo can be formed with Rograkh, Son of Rohgahh, Cloudstone Curio, Peregrine Drake

Color identity: UR
Mana cost: 
Steps:
  1. Activate up to five lands by tapping them, adding at least {4}{U}.
  2. Cast Peregrine Drake by paying {4}{U}.
  3. Peregrine Drake enters the battlefield, triggering itself and Cloudstone Curio.
  4. Resolve the Peregrine Drake trigger, untapping up to five lands.
  5. Resolve the Cloudstone Curio trigger, returning Rograkh from the battlefield to your hand.
  6. Cast Rograkh by paying {0}.
  7. Rograkh enters the battlefield, triggering Cloudstone Curio, 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 storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Rograkh, Son of Rohgahh must be on the battlefield
  - Cloudstone Curio must be on the battlefield
  - Peregrine Drake must be in your hand
  - You control up to five lands that can tap to produce at least {4}{U}.
[END OF COMBO PREREQUISITES]
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