Deeproot Pilgrimage, Pirated Copy, and Kiora's Follower

Prerequisites

• Deeproot Pilgrimage on the battlefield
• Pirated Copy on the battlefield
• Kiora's Follower on the battlefield
• Pirated Copy on the battlefield as a copy of Kiora's Follower
• Kiora's Follower and Pirated Copy do not have summoning sickness

Steps

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

Results

• Infinite ETB
• Infinite creature tokens