Mortuary, Carmen, Cruel Skymarcher, Bile Urchin, and Gwenom, Remorseless

Prerequisites

• Mortuary on the battlefield
• Carmen, Cruel Skymarcher on the battlefield
• Bile Urchin on the battlefield
• Gwenom, Remorseless on the battlefield

Steps

1. Activate Bile Urchin by sacrificing it
2. When Bile Urchin dies, Mortuary and Carmen trigger
3. Resolve the Mortuary trigger, putting Bile Urchin 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 Bile Urchin ability
6. Cast Bile Urchin 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 lifeloss
• Infinite +1/+1 counters on Carmen