Screams from Within, Yahenni, Undying Partisan, and Tormod, the Desecrator

Prerequisites

• Screams from Within on the battlefield
• Yahenni, Undying Partisan on the battlefield
• Tormod, the Desecrator on the battlefield

Steps

1. Activate Yahenni by sacrificing the creature that has Screams from Within attached
2. When the creature dies, Screams from Within triggers, returning it from your graveyard to the battlefield attached to another creature you control
3. Tormod triggers, creating a creature token
4. Resolve the Yahenni ability
5. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers