Mortuary, Bolas's Citadel, Tinder Wall, and Sifa Grent

Prerequisites

• Mortuary on the battlefield
• Bolas's Citadel on the battlefield
• Tinder Wall in hand
• Sifa Grent on the battlefield

Steps

1. Cast Tinder Wall by paying its mana cost
2. Activate Tinder Wall by sacrificing it
3. When Tinder Wall dies, Mortuary and Sifa Grent trigger
4. Resolve the Mortuary trigger, putting Tinder Wall from your graveyard onto the top of your library
5. Resolve the Sifa Grent trigger, causing target opponent to lose 1 life and you to gain 1 life
6. Cast Tinder Wall from the top of your library by paying 1 life
7. Repeat from step 2

Results

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