How can you create a combo with Retreat to Coralhelm, Sakura-Tribe Scout, Oboro, Palace in the Clouds?
user
[START OF COMBO]This combo can be formed with Retreat to Coralhelm, Sakura-Tribe Scout, Oboro, Palace in the Clouds

Color identity: GU
Mana cost: 
Steps:
  1. Activate Sakura-Tribe Scout by tapping it, putting Oboro from your hand onto the battlefield.
  2. Oboro enters the battlefield, triggering Retreat to Coralhelm, untapping Sakura-Tribe Scout.
  3. Activate Oboro's first ability by tapping it, adding {U}.
  4. Activate Oboro's second ability by paying {1}, returning it from the battlefield to your hand.
  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
  - Sakura-Tribe Scout must be on the battlefield
  - Oboro, Palace in the Clouds must be in your hand
  - Sakura-Tribe Scout does not have summoning sickness.
[END OF COMBO PREREQUISITES]
assistant