Reveillark, Body Double, and Altar of Dementia

Prerequisites

• Reveillark in the graveyard
• Body Double on the battlefield
• Altar of Dementia on the battlefield

Steps

1. Activate Altar of Dementia by sacrificing Body Double
2. When Body Double leaves the battlefield, it triggers its Reveillark ability, returning itself from your graveyard to the battlefield as a copy of Reveillark
3. Resolve the Altar of Dementia ability
4. Repeat

Results

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