Junji, the Midnight Sky + Yahenni, Undying Partisan + Karmic Guide + Syr Vondam, Sunstar Exemplar

Junji, the Midnight Sky

Yahenni, Undying Partisan

Karmic Guide

Syr Vondam, Sunstar Exemplar

How it works

1. Activate Yahenni by sacrificing Karmic Guide.
2. When Karmic Guide dies, Syr Vondam triggers, putting a +1/+1 counter on it and causing you to gain 1 life.
3. Resolve the Yahenni ability.
4. Activate Yahenni by sacrificing Junji.
5. When Junji dies, it and Syr Vondam trigger.
6. Resolve the Syr Vondam trigger, putting a +1/+1 counter on it and causing you to gain 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.