Mortuary, Umbral Collar Zealot, Crimson Kobolds, and Bolas's Citadel

Prerequisites

• Mortuary on the battlefield
• Umbral Collar Zealot on the battlefield
• Crimson Kobolds on the battlefield
• Bolas's Citadel on the battlefield

Steps

1. Activate Umbral Collar Zealot by sacrificing Crimson Kobolds When Crimson Kobolds dies, Mortuary triggers, putting Crimson Kobolds from your graveyard onto the top of your library
2. Resolve the Umbral Collar Zealot ability
3. Cast Crimson Kobolds from the top of your library by paying 0 life
4. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite storm count
• Infinite surveil 1