Lurrus of the Dream-Den | Kaya's Ghostform | Pitiless Plunderer

(and one other card)

All permanents on the battlefield (
Kaya's Ghostform attached to
Lurrus of the Dream-Den).

Activate
Carrion Feeder by sacrificing
Lurrus of the Dream-Den.
When
Lurrus of the Dream-Den dies,
Kaya's Ghostform and
Pitiless Plunderer trigger.
Resolve the
Kaya's Ghostform trigger, returning
Lurrus of the Dream-Den from your graveyard to the battlefield.
Resolve the
Pitiless Plunderer trigger, creating a Treasure token.
Resolve the
Carrion Feeder ability, putting a +1/+1 counter on it.
Activate the Treasure by tapping and sacrificing it, adding ({B} magic symbol) .
Cast
Kaya's Ghostform from your graveyard by paying ({B} magic symbol) , attaching it to
Lurrus of the Dream-Den.
Repeat.