Deeproot Pilgrimage + Vesuvan Shapeshifter + Forensic Researcher

Deeproot Pilgrimage

Vesuvan Shapeshifter

Forensic Researcher

How it works

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