How can you create a combo with Retreat to Coralhelm, Llanowar Scout, Boros Garrison?
user
[START OF COMBO]This combo can be formed with Retreat to Coralhelm, Llanowar Scout, Boros Garrison

Color identity: RGWU
Mana cost: 
Steps:
  1. Activate Llanowar Scout by tapping it, putting Boros Garrison from your hand onto the battlefield.
  2. Boros Garrison enters the battlefield, triggering itself and Retreat to Coralhelm.
  3. Resolve the Boros Garrison trigger, returning itself from the battlefield to your hand.
  4. Resolve the Retreat to Coralhelm trigger, untapping Llanowar Scout.
  5. Repeat.[END OF COMBO STEPS]

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

Other prerequisites:
  - Retreat to Coralhelm must be on the battlefield
  - Llanowar Scout must be on the battlefield
  - Boros Garrison must be in your hand
  - Llanowar Scout does not have summoning sickness.
[END OF COMBO PREREQUISITES]
assistant