Colossal Grave-Reaver, Altar of Dementia, and Ilharg, the Raze-Boar

Prerequisites

• Colossal Grave-Reaver on the battlefield
• Altar of Dementia on the battlefield
• Ilharg, the Raze-Boar on the battlefield
• undefined

Steps

1. Activate Altar of Dementia by sacrificing Ilharg
2. When Ilharg dies, it triggers, putting itself into your library third from the top
3. Resolve the Altar of Dementia ability, causing you to mill cards equal to Ilharg's power, ultimately milling Ilharg
4. Colossal Grave-Reaver's second ability triggers, putting Ilharg from your graveyard onto the battlefield
5. Repeat

Results

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