Mortuary, Carmen, Cruel Skymarcher, Carrion Feeder, and Gwenom, Remorseless

Prerequisites

• Mortuary on the battlefield
• Carmen, Cruel Skymarcher on the battlefield
• Carrion Feeder on the battlefield
• Gwenom, Remorseless on the battlefield

Steps

1. Activate Carrion Feeder by sacrificing it
2. When Carrion Feeder dies, Mortuary and Carmen trigger
3. Resolve the Mortuary trigger, putting Carrion Feeder from your graveyard onto the top of your library
4. Resolve the Carmen trigger, causing you to gain 1 life and put a +1/+1 counter on Carmen
5. Resolve the Carrion Feeder ability
6. Cast Carrion Feeder from the top of your library by paying 1 life
7. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite lifegain triggers
• Infinite storm count
• Infinite +1/+1 counters on Carmen