Fain, the Broker + Thornbite Staff + Pitiless Plunderer + Bartolomé del Presidio

Fain, the Broker

Thornbite Staff

Pitiless Plunderer

Bartolomé del Presidio

How it works

1. Activate Fain's third ability by tapping it and sacrificing another artifact, creating a 2/1 Inkling creature token.
2. Activate Bartolomé del Presidio by sacrificing the Inkling.
3. When the Inkling dies, Fain and Pitiless Plunderer trigger.
4. Resolve the Fain trigger, untapping it.
5. Resolve the Pitiless Plunderer trigger, creating a Treasure token.
6. Resolve the Bartolomé del Presidio ability, putting a +1/+1 counter on it.
7. Repeat.