Shambling Ghast + Zul Ashur, Lich Lord + Thornbite Staff + Yahenni, Undying Partisan

Shambling Ghast

Zul Ashur, Lich Lord

Thornbite Staff

Yahenni, Undying Partisan

How it works

1. Activate Zul Ashur by tapping it, targeting Shambling Ghast.
2. Cast Shambling Ghast from your graveyard by paying .
3. Activate Yahenni by sacrificing Shambling Ghast.
4. When Shambing Ghast dies, it and Zul Ashur trigger.
5. Resolve the Shambling Ghast trigger, creating a Treasure token.
6. Resolve the Zul Ashur trigger, untapping it.
7. Resolve the Yahenni ability.
8. Activate the Treasure token by tapping and sacrificing it, adding .
9. Repeat.