Dargo, the Shipwrecker, Crystalline Crawler, Cathars' Crusade, and Yahenni, Undying Partisan

Prerequisites

• Dargo, the Shipwrecker in the command zone
• Crystalline Crawler on the battlefield
• Cathars' Crusade on the battlefield
• Yahenni, Undying Partisan on the battlefield
• You have sacrificed at least three artifacts and/or creatures this turn, plus an additional artifact or creature for each time you've cast Dargo from the command zone this game
• available

Steps

1. Cast Dargo from the command zone by paying
2. When Dargo enters the battlefield, Cathars' Crusade triggers, putting a +1/+1 counter on each creature you control
3. Activate Yahenni by sacrificing Dargo
4. Choose to return Dargo from your graveyard to the command zone
5. Resolve the Yahenni ability
6. Activate Crystalline Crawler's first ability by removing a +1/+1 counter from it, adding
7. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite storm count
• Infinite +1/+1 counters
• Infinite commander casts