Anafenza, Unyielding Lineage + Nether Traitor + Kheru Goldkeeper + Umbral Collar Zealot

Anafenza, Unyielding Lineage

Nether Traitor

Kheru Goldkeeper

Umbral Collar Zealot

How it works

1. Activate Umbral Collar Zealot by sacrificing Nether Traitor.
2. When Nether Traitor dies, Anafenza triggers, creating a 2/2 Spirit creature token.
3. Resolve the Umbral Collar Zealot ability.
4. Activate Umbral Collar Zealot 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 Umbral Collar Zealot ability.
8. Activate the Treasure by tapping and sacrificing it, adding .
9. Repeat.