Chamber Sentry + Primordial Mist + Yedora, Grave Gardener

WUBRG identity

Commander legal

The 3 combo pieces

How to execute it

  1. Cast Chamber Sentry for {X} = 0.
  2. Chamber Sentry dies to having zero toughness.
  3. Yedora triggers, returning it to the battlefield face-down as a Forest land.
  4. Tap that Forest for {G}.
  5. Activate Primordial Mist by exiling the face-down Chamber Sentry, and allowing you to cast it this turn.
  6. Repeat.

What the combo produces