Sun Titan, Altar of Dementia, and Gift of Immortality

Prerequisites

• Sun Titan on the battlefield
• Altar of Dementia on the battlefield
• Gift of Immortality on the battlefield

Steps

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

Results

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