Anafenza, Unyielding Lineage + Nether Traitor + Kheru Goldkeeper + Yahenni, Undying Partisan

Anafenza, Unyielding Lineage

Nether Traitor

Kheru Goldkeeper

Yahenni, Undying Partisan

How it works

1. Activate Yahenni by sacrificing Nether Traitor.
2. When Nether Traitor dies, Anafenza triggers, creating a 2/2 Spirit creature token.
3. Resolve the Yahenni ability.
4. Activate Yahenni by sacrificing the Spirit.
5. When the Spirit dies, Nether Traitor triggers, causing you to pay to return Nether Traitor from your graveyard to the battlefield.
6. Kheru Goldkeeper triggers, creating a Treasure token.
7. Resolve the Yahenni ability.
8. Activate the Treasure by tapping and sacrificing it, adding .
9. Repeat.