Specimen Collector + Deadeye Navigator + Phyrexian Altar

Specimen Collector

Deadeye Navigator

Phyrexian Altar

How it works

1. Activate Specimen Collector by paying 1, blinking itself.
2. Specimen Collector enters the battlefield, triggering itself and Deadeye Navigator's soulbond ability.
3. Resolve the Deadeye Navigator trigger, repairing it and Specimen Collector.
4. Resolve the Specimen Collector trigger, creating a 1/1 Squirrel and a 0/3 Crab creature token.
5. The Squirrel and Crab tokens enter the battlefield, triggering Deadeye Navigator's soulbond ability twice.
6. Resolve both Deadeye Navigator triggers, choosing not to pair it and either the Squirrel or Crab token.
7. Activate Phyrexian Altar twice by sacrificing the Crab and Squirrel tokens, adding 1.
8. Repeat.