Mortuary, Mogg Fanatic, Venerated Stormsinger, and Bolas's Citadel

Prerequisites

• Mortuary on the battlefield
• Mogg Fanatic on the battlefield
• Venerated Stormsinger on the battlefield
• Bolas's Citadel on the battlefield

Steps

1. Activate Mogg Fanatic by sacrificing it
2. When Mogg Fanatic dies, Mortuary and Venerated Stormsinger trigger
3. Resolve the Mortuary trigger, putting Mogg Fanatic from your graveyard onto the top of your library
4. Resolve the Venerated Stormsinger trigger, causing you to gain 1 life and each opponent to lose 1 life
5. Resolve the Mogg Fanatic ability
6. Cast Mogg Fanatic from the top of your library by paying 1 life
7. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite damage
• Infinite lifegain triggers
• Infinite storm count
• Infinite lifeloss