Disa the Restless, Altar of Dementia, Maskwood Nexus, and Avenging Angel

Prerequisites

• Disa the Restless on the battlefield
• Altar of Dementia on the battlefield
• Maskwood Nexus on the battlefield
• Avenging Angel on the battlefield

Steps

1. Activate Altar of Dementia by sacrificing Avenging Angel
2. When Avenging Angel dies, it triggers, putting itself from your graveyard onto the top of your library
3. Resolve the Altar of Dementia ability, causing you to mill cards equal to Avenging Angel's power, which will cause you to mill Avenging Angel
4. As Avenging Angel is a Lhurgoyf due to Maskwood Nexus, Disa's first ability triggers, returning Avenging Angel from your graveyard to the battlefield
5. Repeat

Results

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