Blazing Firesinger // Seething Song, Emiel the Blessed, and Prosper, Tome-Bound

Prerequisites

• Blazing Firesinger // Seething Song on the battlefield
• Emiel the Blessed on the battlefield
• Prosper, Tome-Bound on the battlefield
• available

Steps

1. Cast a copy of Seething Song from exile by paying , adding
2. When you cast that spell, Prosper's last ability triggers, creating a Treasure token
3. Activate a Treasure token by tapping and sacrificing it, adding one mana
4. Activate Emiel the Blessed by paying , blinking Blazing Firesinger, which enters prepared
5. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite magecraft triggers
• Infinite storm count