Carnage, Crimson Chaos, Saffi Eriksdotter, and Umbral Collar Zealot

Prerequisites

• Carnage, Crimson Chaos in hand
• Saffi Eriksdotter in the graveyard
• Umbral Collar Zealot 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 Umbral Collar Zealot 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 Umbral Collar Zealot ability
8. Repeat from step 3

Results

• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite sacrifice triggers
• Infinite surveil