Golgari Thug, Bolas's Citadel, Healer of the Pride, and Yahenni, Undying Partisan

Prerequisites

• Golgari Thug on the battlefield
• Bolas's Citadel on the battlefield
• Healer of the Pride on the battlefield
• Yahenni, Undying Partisan on the battlefield

Steps

1. Activate Yahenni by sacrificing Golgari Thug
2. When Golgari Thug dies, it triggers, putting it from your graveyard onto the top of your library
3. Resolve the Yahenni ability
4. Cast Golgari Thug from the top of your library by paying 2 life
5. When Golgari Thug enters, Healer of the Pride triggers, causing you to gain 2 life
6. Repeat

Results

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