Deeproot Pilgrimage + Forensic Researcher + Spark Double

U identity

Commander legal

The 3 combo pieces

What must be in place

Spark Double on the battlefield as a copy of Forensic Researcher.
Forensic Researcher and Spark Double do not have summoning sickness.

How to execute it

  1. Activate Forensic Researcher by tapping it, targeting Spark Double.
  2. Deeproot Pilgrimage triggers, creating a 1/1 Merfolk creature token.
  3. Resolve the Forensic Researcher ability, untapping Spark Double.
  4. Activate Spark Double by tapping it, targeting Forensic Researcher.
  5. Deeproot Pilgrimage triggers, creating a 1/1 Merfolk creature token.
  6. Resolve the Spark Double ability, untapping Forensic Researcher.
  7. Repeat.

What the combo produces