Mortuary, Aetherflux Reservoir, Umbral Collar Zealot, and Bolas's Citadel

Prerequisites

• Mortuary on the battlefield
• Aetherflux Reservoir on the battlefield
• Umbral Collar Zealot on the battlefield
• Bolas's Citadel on the battlefield

Steps

1. Activate Umbral Collar Zealot by sacrificing a creature with mana value 1 or less
2. When the creature dies, Mortuary triggers, putting the creature from your graveyard onto the top of your library
3. Resolve the Umbral Collar Zealot ability
4. Cast the creature from the top of your library by paying 1 life
5. Aetherflux Reservoir triggers, causing you to gain 1 life Repeat

Results

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