Specimen Collector, Deadeye Navigator, and Phyrexian Altar

Prerequisites

• Specimen Collector on the battlefield
• Deadeye Navigator on the battlefield
• Phyrexian Altar on the battlefield
• Deadeye Navigator is paired with Specimen Collector
• available

Steps

1. Activate Specimen Collector by paying , 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
8. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers