Mortuary, Bolas's Citadel, Dross Harvester, and Tinder Wall

Prerequisites

• Mortuary on the battlefield
• Bolas's Citadel on the battlefield
• Dross Harvester on the battlefield
• Tinder Wall on the battlefield

Steps

1. Activate Tinder Wall by sacrificing it
2. When Tinder Wall dies, Mortuary and Dross Harvester trigger
3. Resolve the Mortuary trigger, putting Tinder Wall from your graveyard onto the top of your library
4. Resolve the Dross Harvester trigger, causing you to gain 2 life Cast Tinder Wall from the top of your library by paying 1 life
5. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite lifegain triggers
• Infinite storm count
• Infinite red mana
• Infinite lifegain