Carnage, Crimson Chaos, Saffi Eriksdotter, and Altar of Dementia

Prerequisites

• Carnage, Crimson Chaos in hand
• Saffi Eriksdotter in the graveyard
• Altar of Dementia on the battlefield

Steps

1. Cast Carnage by paying
2. When Carnage enters, it triggers, returning Saffi from your graveyard to the battlefield
3. Activate Saffi by sacrificing it, targeting Carnage
4. Activate Altar of Dementia by sacrificing Carnage
5. When Carnage dies, Saffi triggers, returning Carnage from your graveyard to the battlefield
6. When Carnage enters, it triggers, returning Saffi from your graveyard to the battlefield
7. Resolve the Altar of Dementia ability
8. Repeat from step 3

Results

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