Disa the Restless, Altar of Dementia, Maskwood Nexus, and God-Eternal Kefnet

Prerequisites

• Disa the Restless on the battlefield
• Altar of Dementia on the battlefield
• Maskwood Nexus on the battlefield
• God-Eternal Kefnet on the battlefield

Steps

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

Results

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