When Finn blows it into Marceline's face, it transports her into Finn's memory of his old house, where he shows Marceline his memory of seeing her breakup with Ash. Its effect seems like the person who uses it transports their target to their memory.
Appearance[]
The magic powder is gold and glistens. The Rag Wizard carries it around in a small dark blue sack decorated with five-pointed stars.