Naru Meha, Master Wizard, Primevals' Glorious Rebirth, and Altar of Dementia

Prerequisites

• Naru Meha, Master Wizard in hand
• Primevals' Glorious Rebirth in hand
• Altar of Dementia on the battlefield
• You control at least one legendary planeswalker or creature
• available

Steps

1. Cast Primevals' Glorious Rebirth by paying
2. Holding priority, cast Naru Meha by paying
3. When Naru Meha enters the battlefield, it triggers, copying Primevals' Glorious Rebirth
4. Holding priority, activate Altar of Dementia by sacrificing Naru Meha, causing target player to mill cards equal to Naru Meha's power
5. Resolve the copy of Primevals' Glorious Rebirth, returning all legendary permanent cards from your graveyard to the battlefield
6. Repeat from step 3

Results

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