Dreamshackle Geist is a rare Creature — Spirit card from Innistrad: Double Feature (DBL), collector number 325. Current market price: $0.44 (foil $2.00), TCGplayer market prices via Scryfall.
Flying At the beginning of combat on your turn, choose up to one — • Tap target creature. • Target creature doesn't untap during its controller's next untap step.