When Wispweaver Angel dies, Pitiless Plunderer triggers, creating a Treasure token.
Activate the Treasure by tapping and sacrificing it, adding ({B} magic symbol) .
Cast Dance of the Dead from your graveyard by paying ({1} magic symbol) ({B} magic symbol) .
When Dance of the Dead enters the battlefield, it returns Wispweaver Angel from your graveyard to the battlefield with Dance of the Dead attached to it.
When Wispweaver Angel enters the battlefield, it triggers, blinking Lurrus.