Altar of Dementia, Amulet of Vigor, Eternal Witness, Hit the Mother Lode, and Mortuary

Prerequisites

• Altar of Dementia on the battlefield
• Amulet of Vigor on the battlefield
• Eternal Witness on the battlefield
• Hit the Mother Lode in hand
• Mortuary on the battlefield
• available

Steps

1. Activate Altar of Dementia by sacrificing Eternal Witness
2. When Eternal Witness dies, Mortuary triggers, putting Eternal Witness on top of your library from your graveyard
3. Resolve the Altar of Dementia ability, causing target player to mill cards equal to Eternal Witness's power
4. Cast Hit the Mother Lode by paying , exiling Eternal Witness from the top of your library and casting it without paying its mana cost, and creating seven tapped Treasure artifact tokens
5. When Eternal Witness and the Treasures enter the battlefield, Amulet of Vigor triggers seven times and Eternal Witness triggers once
6. Resolve all Amulet of Vigor triggers, untapping the Treasures
7. Resolve the Eternal Witness trigger, returning Hit the Mother Lode from your graveyard to your hand
8. Activate seven Treasures by tapping and sacrificing them, adding
9. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite magecraft triggers
• Infinite mill
• Infinite sacrifice triggers
• Infinite self-mill
• Infinite storm count