Primal Prayers, Decoction Module, and Shrieking Drake

Prerequisites

• Primal Prayers on the battlefield
• Decoction Module on the battlefield
• Shrieking Drake in hand
• You have at least or enough mana to cast Shrieking Drake

Steps

1. Cast Shrieking Drake by paying due to Primal Prayers, if able, or by paying its mana cost
2. When Shrieking Drake enters the battlefield, it and Decoction Module trigger
3. Resolve the Decoction Module trigger, causing you to get
4. Resolve the Shrieking Drake trigger, returning it from the battlefield to your hand
5. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite storm count