Cloud Key + Primordial Mist + Ugin, the Ineffable

U identity

Commander legal

The 3 combo pieces

What must be in place

You have a creature card in hand that has Morph or Megamorph.
"Creature" chosen with Cloud Key.

How to execute it

  1. Cast the creature using its morph or megamorph cost by paying {0}, putting it face-down on the battlefield as a 3/3 creature.
  2. Activate Primordial Mist by exiling the face down creature face up, allowing you to cast it this turn.
  3. Repeat.

What the combo produces