How can you create a combo with Retreat to Coralhelm, Sakura-Tribe Scout, Ghost Town?
user
[START OF COMBO]This combo can be formed with Retreat to Coralhelm, Sakura-Tribe Scout, Ghost Town

Color identity: GU
Mana cost: 
Steps:
  1. Activate Sakura-Tribe Scout by tapping it, putting Ghost Town from your hand onto the battlefield.
  2. Retreat to Coralhelm triggers, untapping Sakura-Tribe Scout.
  3. Activate Ghost Town by tapping it, adding {C}.
  4. Activate Ghost town by paying {0}, returning it to your hand.
  5. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite colorless mana
  - Infinite landfall triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Retreat to Coralhelm must be on the battlefield
  - Sakura-Tribe Scout must be on the battlefield
  - Ghost Town must be in your hand
  - Sakura-Tribe Scout does not have summoning sickness.
  - It is not your turn.
[END OF COMBO PREREQUISITES]
assistant