Deeproot Pilgrimage, Naga Fleshcrafter, and Kiora's Follower

Prerequisites

• Deeproot Pilgrimage on the battlefield
• Naga Fleshcrafter on the battlefield
• Kiora's Follower on the battlefield

Steps

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

Results

• Infinite ETB
• Infinite creature tokens