Scavenger Hunt is a uncommon Artifact — Attraction card from Unfinity (UNF), collector number 226c. Current market price: $0.14 (foil $0.27), TCGplayer market prices via Scryfall.
Visit — Choose "a creature wearing a hat," "a book or scroll," or "teeth" at random. You have ten seconds to search your library and reveal a card with the chosen item in its art. If you do, claim the prize! Then shuffle. Prize — You get {TK}{TK}, then you may put a sticker on a nonland permanent you own. Sacrifice Scavenger Hunt and open an Attraction.