How can you create a combo with Cloudstone Curio, Ugin, the Ineffable, Herald of Kozilek?
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[START OF COMBO]This combo can be formed with Cloudstone Curio, Ugin, the Ineffable, Herald of Kozilek

Color identity: UR
Mana cost: 
Steps:
  1. Cast the creature card with morph or megamorph from your hand for its morph cost by paying {0}.
  2. Whenever the face-down creature enters the battlefield, Cloudstone Curio triggers, returning another creature with morph or megamorph to your hand from the battlefield.
  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:
  - All permanants must be on the battlefield
  - You control a nontoken creature with morph or megamorph.
  - You have a creature card with morph or megamorph in your hand.
[END OF COMBO PREREQUISITES]
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