Mortuary, Zulaport Cutthroat, Bolas's Citadel, and Phyrexian Dreadnought

Prerequisites

• Mortuary on the battlefield
• Zulaport Cutthroat on the battlefield
• Bolas's Citadel on the battlefield
• Phyrexian Dreadnought in the library
• available

Steps

1. Cast Phyrexian Dreadnought from the top of your library by paying 1 life
2. When Phyrexian Dreadnought enters, it triggers, causing you to sacrifice it
3. When Phyrexian Dreadnought dies, Mortuary and Zulaport Cutthroat trigger
4. Resolve the Mortuary trigger, putting Phyrexian Dreadnought from your graveyard onto the top of your library
5. Resolve the Zulaport Cutthroat trigger, causing you to gain 1 life and each opponent to lose 1 life
6. Repeat

Results

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