Requiem Angel, Conspiracy, and Altar of Dementia

Prerequisites

• Requiem Angel on the battlefield
• Conspiracy on the battlefield
• Altar of Dementia on the battlefield

Steps

1. Activate Altar of Dementia by sacrificing another creature
2. When the creature dies, Requiem Angel triggers, creating a 1/1 Soldier creature token
3. The token won't be a Soldier due to Conspiracy
4. Resolve the Altar of Dementia ability, causing a player to mill a number of cards equal to the sacrificed creature's power
5. Repeat

Results

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