Mortuary, Umbral Collar Zealot, Tarpan, and Gwenom, Remorseless

Prerequisites

• Mortuary on the battlefield
• Umbral Collar Zealot on the battlefield
• Tarpan in hand
• Gwenom, Remorseless on the battlefield

Steps

1. Activate Umbral Collar Zealot by sacrificing Tarpan
2. When Tarpan dies, it and Mortuary triggers
3. Resolve the Mortuary trigger, putting Tarpan from your graveyard onto the top of your library
4. Resolve the Tarpan trigger, causing you to gain 1 life Resolve the Umbral Collar Zealot ability
5. Cast Tarpan from the top of your library by paying 1 life due to Gwenom
6. Repeat

Results

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