Junji, the Midnight Sky, Yahenni, Undying Partisan, Falkenrath Noble, and Karmic Guide

Prerequisites

• Junji, the Midnight Sky on the battlefield
• Yahenni, Undying Partisan on the battlefield
• Falkenrath Noble on the battlefield
• Karmic Guide on the battlefield

Steps

1. Activate Yahenni by sacrificing Karmic Guide
2. When Karmic Guide dies, Falkenrath Noble triggers, causing you to gain 1 life and target opponent to lose 1 life
3. Resolve the Yahenni ability
4. Activate Yahenni by sacrificing Junji
5. When Junji dies, it and Falkenrath Noble trigger
6. Resolve the Falkenrath Noble trigger, causing you to gain 1 life and target opponent to lose 1 life
7. Resolve the Junji trigger, returning Karmic Guide from your graveyard to the battlefield and causing you to lose 2 life
8. When Karmic Guide enters, it triggers, returning Junji from your graveyard to the battlefield
9. Resolve the Yahenni ability
10. Repeat

Results

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