Alela, Artful Provocateur, Cathars' Crusade, Ancestral Statue, Crystalline Crawler, and Panharmonicon

Prerequisites

• Alela, Artful Provocateur on the battlefield
• Cathars' Crusade on the battlefield
• Ancestral Statue in hand
• Crystalline Crawler on the battlefield
• Panharmonicon on the battlefield
• available

Steps

1. Cast Ancestral Statue by paying
2. Alela triggers, creating a 1/1 Faerie creature token
3. When the Faerie enters the battlefield, Cathars' Crusade triggers twice, putting two +1/+1 counters on each creature you control
4. When Ancestral Statue enters the battlefield, it and Cathars' Crusade trigger twice
5. Resolve the Ancestral Statue triggers, returning it and the Faerie from the battlefield to your hand
6. Resolve the Cathars' Crusade triggers, putting two +1/+1 counters on each creature you control
7. Activate Crystalline Crawler's first ability four times by removing four +1/+1 counters from it, adding
8. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite storm count
• Infinite +1/+1 counters