Karmic Guide, Reveillark, and Altar of Dementia

Prerequisites

• Karmic Guide on the battlefield
• Reveillark on the battlefield
• Altar of Dementia on the battlefield

Steps

1. Activate Altar of Dementia by sacrificing Karmic Guide, causing target player to mill cards equal to Karmic Guide's power
2. Activate Altar of Dementia by sacrificing Reveillark
3. Reveillark dies, returning Karmic Guide from your graveyard to the battlefield
4. Karmic Guide enters the battlefield, returning Reveillark from your graveyard to the battlefield
5. Resolve the Altar of Dementia ability from step 2, causing target player to mill cards equal to Reveillark's power
6. Repeat

Results

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