Lurrus of the Dream-Den, Flickering Hound, Altar of Dementia, and Phyrexian Walker

Prerequisites

• Lurrus of the Dream-Den on the battlefield
• Flickering Hound on the battlefield
• Altar of Dementia on the battlefield
• Phyrexian Walker in hand or in the graveyard

Steps

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

Results

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