Riku of Two Reflections + Worldgorger Dragon

Mana needed: {3}{R}{R}{R}

GUR identity

Commander legal

The 2 combo pieces

What must be in place

You control any number of permanents that enter the battlefield untapped and can tap to produce at least {1}{G}{U}.

How to execute it

  1. Cast Worldgorger Dragon by paying {3}{R}{R}{R}.
  2. Worldgorger Dragon enters the battlefield, triggering its first ability and Riku's second ability.
  3. Holding priority, activate any number of permanents by tapping them, adding at least {1}{G}{U}.
  4. Resolve the Riku trigger, causing you to pay {G}{U} to create a token copy of Worldgorger Dragon.
  5. The token Worldgorger Dragon enters the battlefield, triggering its first ability, exiling all other permanents you control.
  6. The nontoken Worldgorger Dragon leaves the battlefield, triggering its second ability, returning nothing from exile to the battlefield.
  7. Resolve the Worldgorger Dragon trigger from step 2, exiling the token Worldgorger Dragon.
  8. The token Worldgorger Dragon leaves the battlefield, triggering its second ability, returning all permanents exiled with it to the battlefield.
  9. Repeat from step 2.

What the combo produces