Prosper, Tome-Bound + Unlicensed Hearse + Eternal Scourge + Ashnod's Altar + Thornbite Staff

Prosper, Tome-Bound

Unlicensed Hearse

Eternal Scourge

Ashnod's Altar

Thornbite Staff

How it works

1. Cause Unlicensed Hearse to become a creature.
2. Activate Thornbite Staff's equip ability by paying 4, attaching it to Unlicensed Hearse.
3. Activate Ashnod's Altar by sacrificing Eternal Scourge, adding CC.
4. Eternal Scourge dies, triggering Unlicensed Hearse, untapping Unlicensed Hearse.
5. Activate Unlicensed Hearse by tapping it, exiling Eternal Scourge from your graveyard.
6. Cast Eternal Scourge from exile by paying 3.
7. Prosper triggers, creating a Treasure token.
8. Activate the Treasure token by tapping and sacrificing it, adding 1.
9. Repeat from step 3.