The Thirteenth Doctor, Eternal Scourge, Ashnod's Altar, Rest in Peace, and Crystalline Crawler

Prerequisites

• The Thirteenth Doctor on the battlefield
• Eternal Scourge on the battlefield
• Ashnod's Altar on the battlefield
• Rest in Peace on the battlefield
• Crystalline Crawler on the battlefield
• available

Steps

1. Activate Ashnod's Altar by sacrificing Eternal Scourge, adding
2. Eternal Scourge is exiled instead of being put into your graveyard due to Rest in Peace
3. Cast Eternal Scourge from exile by paying
4. The Thirteenth Doctor's first ability triggers, putting a +1/+1 counter on Crystalline Crawler
5. Activate Crystalline Crawler's first ability by removing a +1/+1 counter from it, adding
6. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count