Mortuary, Carmen, Cruel Skymarcher, Blood Pet, and Gwenom, Remorseless

Prerequisites

• Mortuary on the battlefield
• Carmen, Cruel Skymarcher on the battlefield
• Blood Pet on the battlefield
• Gwenom, Remorseless on the battlefield

Steps

1. Activate Blood Pet by sacrificing it
2. When Blood Pet dies, Mortuary and Carmen trigger
3. Resolve the Mortuary trigger, putting Blood Pet 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. Cast Blood Pet from the top of your library by paying 1 life
6. Repeat

Results

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