How can you create a combo with Retreat to Coralhelm, Skyshroud Ranger, Selesnya Sanctuary?
user
[START OF COMBO]This combo can be formed with Retreat to Coralhelm, Skyshroud Ranger, Selesnya Sanctuary

Color identity: GWU
Mana cost: 
Steps:
  1. Activate Skyshroud Ranger by tapping it, putting Selesnya Sanctuary from your hand onto the battlefield.
  2. Selesnya Sanctuary enters the battlefield, triggering itself and Retreat to Coralhelm.
  3. Resolve the Selesnya Sanctuary trigger, returning itself from the battlefield to your hand.
  4. Resolve the Retreat to Coralhelm trigger, untapping Skyshroud Ranger.
  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
  - Skyshroud Ranger must be on the battlefield
  - Selesnya Sanctuary must be in your hand
  - Skyshroud Ranger does not have summoning sickness.
[END OF COMBO PREREQUISITES]
assistant