Deeproot Pilgrimage + Kiora's Follower + Progenitor Mimic

Deeproot Pilgrimage

Kiora's Follower

Progenitor Mimic

How it works

1. Activate Kiora's Follower by tapping it, targeting Progenitor Mimic.
2. Deeproot Pilgrimage triggers, creating a 1/1 Merfolk creature token.
3. Resolve the Kiora's Follower ability, untapping Progenitor Mimic.
4. Activate Progenitor Mimic by tapping it, targeting Kiora's Follower.
5. Deeproot Pilgrimage triggers, creating a 1/1 Merfolk creature token.
6. Resolve the Progenitor Mimic ability, untapping Kiora's Follower.
7. Repeat.