Mortuary, Skirk Prospector, Cauldron of Essence, and Gwenom, Remorseless

Prerequisites

• Mortuary on the battlefield
• Skirk Prospector on the battlefield
• Cauldron of Essence on the battlefield
• Gwenom, Remorseless on the battlefield

Steps

1. Activate Skirk Prospector by sacrificing it
2. When Skirk Prospector dies, Mortuary and Cauldron of Essence trigger
3. Resolve the Mortuary trigger, putting Skirk Prospector from your graveyard onto the top of your library
4. Resolve the Cauldron of Essence trigger, causing you to gain 1 life and each opponent to lose 1 life
5. Cast Skirk Prospector from the top of your library by paying 1 life
6. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite lifegain triggers
• Infinite lifeloss
• Infinite red mana
• Infinite sacrifice triggers
• Infinite storm count