Mortuary, Bolas's Citadel, Goblin Trashmaster, and Bontu's Monument

Prerequisites

• Mortuary on the battlefield
• Bolas's Citadel on the battlefield
• Goblin Trashmaster on the battlefield
• Bontu's Monument on the battlefield

Steps

1. Activate Goblin Trashmaster by sacrificing a creature with mana value 1 or less
2. When the creature dies, Mortuary triggers, putting the creature from your graveyard onto the top of your library
3. Resolve the Goblin Trashmaster ability
4. Cast the creature from the top of your library by paying 1 life
5. Bontu's Monument triggers, causing you to gain 1 life Repeat

Results

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