Grazing Kelpie, Luminous Broodmoth, and Altar of Dementia

Prerequisites

• Grazing Kelpie on the battlefield
• Luminous Broodmoth on the battlefield
• Altar of Dementia on the battlefield

Steps

1. Sacrifice Grazing Kelpie to Altar of Dementia to mill target player equal to Grazing Kelpie's power
2. Return Grazing Kelpie to the battlefield with the persist trigger, giving it a -1/-1 counter
3. Sacrifice Grazing Kelpie to Altar of Dementia to mill target player equal to Grazing Kelpie's power
4. Return Grazing Kelpie to the battlefield with the Luminous Broodmoth trigger, giving it a flying counter
5. Repeat

Results

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