Niko, Light of Hope, Timestream Navigator, and Deadeye Navigator

Prerequisites

• Niko, Light of Hope on the battlefield
• Timestream Navigator on the battlefield
• Deadeye Navigator on the battlefield
• plus each turn available

Steps

1. Activate Niko by paying and tapping it, exiling Timestream Navigator and causing Shards you control to become a copy of Timestream Navigator until the end step
2. Activate a Shard by paying , tapping it and putting it from the battlefield onto the bottom of your library, causing you to take an extra turn after this one
3. Activate Niko by paying , bling it
4. When Niko enters, it and Deadeye Navigator's soulbond ability trigger
5. Resolve the Niko trigger, creating two Shard tokens
6. Resolve the Deadeye Navigator trigger, repairing it and Niko
7. At the beginning of the next end step, Timestream Navigator is returned from exile to the battlefield
8. Repeat each turn

Results

• Infinite turns
• Lock