Aphetto Alchemist + Deeproot Pilgrimage + Kiora's Follower

GU identity

Commander legal

The 3 combo pieces

What must be in place

Neither creature has summoning sickness.

How to execute it

  1. Activate either of the creatures by tapping it, targeting the other creature.
  2. If the tapped creature was a Merfolk, Deeproot Pilgrimage triggers, creating a 1/1 Merfolk creature token.
  3. Resolve the ability from step 1, untapping the targeted creature.
  4. Repeat.

What the combo produces