Mikaeus, the Unhallowed, Carnifex Demon, and Viscera Seer

Prerequisites

• Mikaeus, the Unhallowed on the battlefield
• Carnifex Demon on the battlefield
• Viscera Seer on the battlefield

Steps

1. Activate Viscera Seer by sacrificing Carnifex Demon
2. Carnifex Demon dies, triggering its undying ability, returning it from your graveyard to the battlefield with a -1/-1 counter on it
3. Resolve the Viscera Seer ability, causing you to scry 1
4. Repeat

Results

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