Fastbond + Plaza of Harmony + Trench Behemoth

GU identity

The 3 combo pieces

What must be in place

You control at least two Gates.

How to execute it

  1. Activate Trench Behemoth by returning Plaza of Harmony from the battlefield to your hand, untapping it.
  2. Play Plaza of Harmony, triggering it and Fastbond.
  3. Resolve the Plaza of Harmony trigger, causing you to gain 3 life.
  4. Resolve the Fastbond trigger, dealing 1 damage to you.
  5. Activate Plaza of Harmony by tapping it, adding either {C} or one mana of any type a Gate you control could produce.
  6. Repeat.

What the combo produces