Koll, the Forgemaster, Blood Pet, and Sai of the Shinobi

Prerequisites

• Koll, the Forgemaster on the battlefield
• Blood Pet on the battlefield
• Sai of the Shinobi on the battlefield
• Sai of the Shinobi attached to Blood Pet

Steps

1. Activate Blood Pet by sacrificing it, adding
2. When Blood Pet dies, Koll triggers, returning Blood Pet from your graveyard to your hand
3. Cast Blood Pet by paying
4. When Blood Pet enters the battlefield, Sai of the Shinobi triggers, attaching itself to Blood Pet
5. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count