How can you create a combo with Trench Behemoth, Fastbond, Tranquil Cove?
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[START OF COMBO]This combo can be formed with Trench Behemoth, Fastbond, Tranquil Cove

Color identity: GWU
Mana cost: 
Steps:
  1. Activate Trench Behemoth by returning Tranquil Cove from the battlefield to your hand, untapping it.
  2. Play Tranquil Cove, triggering it and Fastbond.
  3. Resolve the Tranquil Cove trigger, causing you to gain 1 life.
  4. Resolve the Fastbond trigger, dealing 1 damage to you.
  5. Repeat.[END OF COMBO STEPS]

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

Other prerequisites:
  - All permanants must be on the battlefield
[END OF COMBO PREREQUISITES]
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