Niko, Light of Hope + Timestream Navigator + The Neutrinos
Niko, Light of Hope
Timestream Navigator
The Neutrinos
Infinite turnsLock
How it works
Activate Niko by paying 2 and tapping it, exiling Timestream Navigator and causing Shards you control to become a copy of Timestream Navigator until the end step.
Activate a Shard by paying 2, tapping it and putting it from the battlefield onto the bottom of your library, causing you to take an extra turn after this one.
Declare The Neutrinos as an attacker. It triggers, blinking Niko.
When Niko enters, it triggers, creating two Shard tokens.
At the beginning of the next end step, Timestream Navigator is returned from exile to the battlefield. The Neutrinos then triggers, blinking Niko.