How can you create a combo with Retreat to Coralhelm, Trade Routes, Murasa Rootgrazer?
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[START OF COMBO]This combo can be formed with Retreat to Coralhelm, Trade Routes, Murasa Rootgrazer

Color identity: GWU
Mana cost: 
Steps:
  1. Activate the basic land by tapping it, adding at least {1}.
  2. Activate Trade Routes' first ability by paying {1}, returning the basic land from the battlefield to your hand.
  3. Activate Murasa Rootgrazer's first ability by tapping it, putting the land from your hand onto the battlefield.
  4. When the land enters the battlefield, Retreat to Coralhelm triggers, untapping Murasa Rootgrazer.
  5. Repeat.[END OF COMBO STEPS]

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

Other prerequisites:
  - All permanants must be on the battlefield
  - You control a basic land.
  - Murasa Rootgrazer does not have summoning sickness.
[END OF COMBO PREREQUISITES]
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