Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight, Yahenni, Undying Partisan, and Putrid Pals

Prerequisites

• Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight on the battlefield
• Yahenni, Undying Partisan on the battlefield
• Putrid Pals on the battlefield

Steps

1. Activate Yahenni by sacrificing Putrid Pals
2. When Putrid Pals dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to its replacement effect
3. Resolve the Yahenni ability
4. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite sacrifice triggers