Lurrus of the Dream-Den, Flickering Hound, Altar of Dementia, and Rograkh, Son of Rohgahh

Prerequisites

• Lurrus of the Dream-Den on the battlefield
• Flickering Hound on the battlefield
• Altar of Dementia on the battlefield
• Rograkh, Son of Rohgahh in hand or in the command zone or in the graveyard

Steps

1. Cast Rograkh by paying
2. Flickering Hound triggers, blinking Lurrus
3. Resolve the Rograkh spell
4. Then, activate Altar of Dementia by sacrificing Rograkh, causing a player to mill a number of cards equal to the sacrificed creature's power Repeat

Results

• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite mill
• Infinite self-mill
• Infinite storm count