How can you create a combo with Retreat to Coralhelm, Walking Atlas, Dimir Aqueduct?
user
[START OF COMBO]This combo can be formed with Retreat to Coralhelm, Walking Atlas, Dimir Aqueduct

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