How can you create a combo with Patron of the Moon, Wonderscape Sage, Retreat to Coralhelm, Amulet of Vigor?
user
[START OF COMBO]This combo can be formed with Patron of the Moon, Wonderscape Sage, Retreat to Coralhelm, Amulet of Vigor

Color identity: U
Mana cost: 
Steps:
  1. Activate the mana-producing land by tapping it, adding at least {1}.
  2. Activate Wonderscape Sage by tapping it and returning the mana-producing land from the battlefield to your hand, causing you to draw a card and discard a card if the land didn't have a nonbasic land type.
  3. Activate Patron of the Moon by paying {1}, putting the mana-producing land from your hand onto the battlefield.
  4. When the land enters the battlefield, Amulet of Vigor and Retreat to Coralhelm trigger.
  5. Resolve the Retreat to Coralhelm trigger, untapping Wonderscape Sage.
  6. Resolve the Amulet of Vigor trigger, untapping the land.
  7. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite card draw
  - Infinite self-discard triggers
  - Infinite draw triggers
  - Infinite looting
  - Near-infinite landfall triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Wonderscape Sage does not have summoning sickness.
  - You control at least one mana-producing land.
[END OF COMBO PREREQUISITES]
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