How can you create a combo with Retreat to Coralhelm, Budoka Gardener // Dokai, Weaver of Life, Ghost Town?
user
[START OF COMBO]This combo can be formed with Retreat to Coralhelm, Budoka Gardener // Dokai, Weaver of Life, Ghost Town

Color identity: GU
Mana cost: 
Steps:
  1. During any opponent's turn, activate Budoka Gardener by tapping it, putting Ghost Town from your hand onto the battlefield.
  2. Ghost Town enters the battlefield, triggering Retreat to Coralhelm, untapping Budoka Gardener.
  3. Activate Ghost Town's first ability by tapping it, adding {C}.
  4. Activate Ghost Town's second ability by paying {0}, returning it from the battlefield to your hand.
  5. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite colorless mana during each opponent's turn
  - Infinite landfall triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Retreat to Coralhelm must be on the battlefield
  - Budoka Gardener // Dokai, Weaver of Life must be on the battlefield
  - Ghost Town must be in your hand
  - Budoka Gardener does not have summoning sickness.
  - It is not your turn.
  - You control fewer than nine lands.
[END OF COMBO PREREQUISITES]
assistant