Automated Assembly Line, Gonti's Aether Heart, Demon of Dark Schemes, and Yahenni, Undying Partisan

Prerequisites

• Automated Assembly Line on the battlefield
• Gonti's Aether Heart on the battlefield
• Demon of Dark Schemes on the battlefield
• Yahenni, Undying Partisan on the battlefield
• You have at least available

Steps

1. Activate Automated Assembly Line by paying , creating a 3/3 Robot artifact creature token
2. When the Robot enters the battlefield, Gonti's Aether Heart triggers, causing you to get
3. Activate Yahenni by sacrificing the Robot
4. When the Robot dies, Demon of Dark Schemes' second ability triggers, causing you to get
5. Resolve the Yahenni ability, giving it indestructible until end of turn
6. Repeat

Results

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