Atla Palani, Nest Tender, Arashin Sovereign, Maskwood Nexus, and Altar of Dementia

Prerequisites

• Atla Palani, Nest Tender on the battlefield
• Arashin Sovereign on the battlefield
• Maskwood Nexus on the battlefield
• Altar of Dementia on the battlefield

Steps

1. Activate Altar of Dementia by sacrificing Arashin Sovereign
2. Arashin Sovereign dies, triggering itself and Atla Palani
3. Resolve the Arashin Sovereign trigger, putting it on top of your library from your graveyard
4. Resolve the Atla Palani trigger, revealing Arashin Sovereign from the top of your library and putting it onto the battlefield
5. Resolve the Altar of Dementia ability from step 1, causing target player to mill cards equal to Arashin Sovereign's power
6. Repeat

Results

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