Tenacious Dead + Pitiless Plunderer + Carrion Feeder + Fumulus, the Infestation

Tenacious Dead

Pitiless Plunderer

Carrion Feeder

Fumulus, the Infestation

How it works

1. Activate Carrion Feeder by sacrificing Tenacious Dead.
2. When Tenacious Dead dies, it, Fumulus, and Pitiless Plunderer trigger.
3. Resolve the Pitiless Plunderer trigger, creating a Treasure token.
4. Resolve the Fumulus trigger, creating a creature token.
5. In response to the remaining trigger, activate Carrion Feeder by sacrificing the creature token.
6. When the creature token dies, Pitiless Plunderer triggers, creating a Treasure token.
7. Resolve the Carrion Feeder ability from step 5.
8. Activate two Treasure tokens by tapping and sacrificing them, adding .
9. Resolve the Tenacious Dead trigger, paying 1 to return it to the battlefield from your graveyard.
10. Resolve the Carrion Feeder ability from step 1.
11. Repeat.