Metastatic Evangel, Shrieking Drake, and Pentad Prism

Prerequisites

• Metastatic Evangel on the battlefield
• Shrieking Drake in hand
• Pentad Prism on the battlefield
• Pentad Prism has at least one charge 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 charge counter on Pentad Prism
5. Activate Pentad Prism by removing a charge counter from it, adding
6. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite storm count
• Infinite proliferate