Mortuary, Ashnod's Altar, Fear of Lost Teeth, and Bolas's Citadel

Prerequisites

• Mortuary on the battlefield
• Ashnod's Altar on the battlefield
• Fear of Lost Teeth in hand
• Bolas's Citadel on the battlefield

Steps

1. Activate Ashnod's Altar by sacrificing Fear of Lost Teeth
2. When Fear of Lost Teeth dies, it and Mortuary triggers
3. Resolve the Mortuary trigger, putting Fear of Lost Teeth from your graveyard onto the top of your library
4. Resolve the Fear of Lost Teeth trigger, causing you to gain 1 life and dealing 1 damage to any target
5. Cast Fear of Lost Teeth from the top of your library by paying 1 life due to Bolas's Citadel
6. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite colorless mana
• Infinite storm count
• Infinite damage
• Infinite lifegain triggers