Yannik, Scavenging Sentinel + Crystalline Crawler + Deadeye Navigator

Yannik, Scavenging Sentinel

Crystalline Crawler

Deadeye Navigator

How it works

1. Activate Yannik by paying 1, blinking it.
2. Yannik leaves the battlefield, returning any card exiled with it to the battlefield under your control.
3. When Yannik enters the battlefield, it and Deadeye Navigator's soulbond ability triggers.
4. Resolve the Yannik trigger, exiling another creature with base power 2 or greater and putting at least two +1/+1 counters on Crystalline Crawler.
5. Resolve the Deadeye Navigator trigger, repairing it and Yannik.
6. Activate Crystalline Crawler's first ability twice by removing two +1/+1 counters from it, adding 1.
7. Repeat.
8. If the exiled creature has base power 3 or greater, this combo nets infinite mana and +1/+1 counters.