Metastatic Evangel, Shrieking Drake, and Crystalline Crawler

Prerequisites

• Metastatic Evangel on the battlefield
• Shrieking Drake in hand
• Crystalline Crawler on the battlefield
• Crystalline Crawler has at least one +1/+1 counter on it
• available

Steps

1. Cast Shrieking Drake by paying
2. When Shrieking Drake enters the battlefield, it and Metastatic Evangel trigger
3. Resolve the Shrieking Drake trigger, returning it from the battlefield to your hand
4. Resolve the Metastatic Evangel trigger, 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 LTB
• Infinite ETB
• Infinite storm count
• Infinite proliferate