Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight, Viscera Seer, and Cryptborn Horror

Prerequisites

• Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight on the battlefield
• Viscera Seer on the battlefield
• Cryptborn Horror on the battlefield

Steps

1. Activate Viscera Seer by sacrificing Cryptborn Horror
2. When Cryptborn Horror dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to its replacement effect
3. Resolve the Viscera Seer ability
4. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite sacrifice triggers
• Infinite scry 1