Atla Palani, Nest Tender, Altar of Dementia, and Leyline of Transformation

Prerequisites

• Atla Palani, Nest Tender on the battlefield
• Altar of Dementia on the battlefield
• Leyline of Transformation on the battlefield

Steps

1. Activate Altar of Dementia by sacrificing another creature
2. When the creature dies as an Egg due to Leyline of Transformation, Atla triggers, revealing a creature card from your library and putting it onto the battlefield
3. Resolve the Altar of Dementia ability
4. Repeat as desired / able

Results

• Near-infinite ETB
• Near-infinite LTB
• Near-infinite death triggers
• Near-infinite mill
• Near-infinite sacrifice triggers
• Near-infinite self-mill
• Put all creature cards in your library onto the battlefield, then into your graveyard