Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight, Carrion Feeder, and Marionette Apprentice

Prerequisites

• Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight on the battlefield
• Carrion Feeder on the battlefield
• Marionette Apprentice on the battlefield

Steps

1. Activate Carrion Feeder by sacrificing Marionette Apprentice
2. When Marionette Apprentice dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it
3. When Marionette Apprentice enters, its fabricate ability triggers, putting a +1/+1 counter on it
4. Resolve the Carrion Feeder ability
5. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite +1/+1 counters on Carrion Feeder