Dualcaster Mage, Fake Your Own Death, and Altar of Dementia

Prerequisites

• Dualcaster Mage in hand
• Fake Your Own Death in hand
• Altar of Dementia on the battlefield
• There is at least one creature on the battlefield
• available

Steps

1. Cast Fake Your Own Death by paying , targeting any creature
2. Holding priority, cast Dualcaster Mage by paying
3. When Dualcaster Mage enters the battlefield, it triggers, copying Fake Your Own Death, targeting Dualcaster Mage
4. Resolve the copy of Fake Your Own Death
5. Holding priority, activate Altar of Dementia by sacrificing Dualcaster Mage
6. When Dualcaster Mage dies, it triggers, returning itself from your graveyard to the battlefield and creating a Treasure token
7. Repeat from step 3
8. Resolve all Altar of Dementia abilities, causing any number of players to mill that many cards

Results

• Infinite colored mana
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite magecraft triggers
• Infinite mill
• Infinite sacrifice triggers
• Infinite self-mill
• Infinite Treasure tokens