Yannik, Scavenging Sentinel + Sage of Hours + Thassa, Deep-Dwelling

Yannik, Scavenging Sentinel

Sage of Hours

Thassa, Deep-Dwelling

How it works

1. At the beginning of your end step, Thassa triggers, blinking Yannik.
2. Yannik leaves the battlefield, causing any permanents exiled by it to re-enter the battlefield under their owner's control.
3. Yannik enters the battlefield, exiling a nontoken creature you control with power five or greater until Yannik leaves the battlefield, and putting at least five +1/+1 counters on Sage of Hours.
4. Activate Sage of Hours by removing all +1/+1 counters from it, causing you to take at least one extra turn after this one.
5. Repeat each turn.