Sun Titan, Altar of Dementia, and Shade's Form

Prerequisites

• Sun Titan on the battlefield
• Altar of Dementia on the battlefield
• Shade's Form on the battlefield

Steps

1. Activate Altar of Dementia by sacrificing Sun Titan
2. When Sun Titan dies, Shade's Form triggers, returning Sun Titan from your graveyard to the battlefield
3. When Sun Titan enters, it triggers, returning Shade's Form from your graveyard to the battlefield attached to Sun Titan
4. Resolve the Altar of Dementia ability
5. Repeat

Results

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