Infuse with Vitality, Altar of Dementia, and Dualcaster Mage

Prerequisites

• Infuse with Vitality in hand
• Altar of Dementia on the battlefield
• Dualcaster Mage in hand
• available

Steps

1. Cast Infuse with Vitality by paying its mana cost
2. Holding priority, cast Dualcaster Mage by paying its mana cost
3. When Dualcaster Mage enters, it triggers, copying Infuse with Vitality, with the copy targeting Dualcaster Mage
4. Resolve the copy of Infuse with Vitality
5. Holding priority, activate Altar of Dementia by sacrificing Dualcaster Mage
6. When Dualcaster Mage dies, it triggers, returning it from your graveyard to the battlefield
7. Repeat from step 3
8. Resolve all Altar of Dementia abilities from step 5

Results

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