Luminous Broodmoth, Geralf's Messenger, and Viscera Seer

Prerequisites

• Luminous Broodmoth on the battlefield
• Geralf's Messenger on the battlefield
• Viscera Seer on the battlefield

Steps

1. Sacrifice Geralf's Messenger to Viscera Seer, scrying 1
2. Both the Undying trigger and Luminous Broodmoth trigger go onto the stack
3. Stack them so that the Broodmoth trigger resolves first
4. Messenger will return to the battlefield with a Flying counter on it and on ETB target opponent loses 2 life
5. The Undying trigger will fail to resolve since Messenger is already on the battlefield
6. Sacrifice Messenger to Viscera Seer, scrying 1
7. Undying triggers, returning Messenger to the battlefield with a +1/+1 counter on it and on ETB target opponent loses 2 life
8. Sacrifice Messenger to Viscera Seer, scrying 1
9. Luminous Broodmoth tiggers, returning Messenger to the battlefield with a Flying counter on it and on ETB target opponent loses 2 life

Results

• Infinite death triggers
• Infinite ETB
• Infinite lifeloss
• Infinite LTB
• Infinite sacrifice triggers
• Infinite scry