The Superlatorium is a uncommon Artifact — Attraction card from Unfinity (UNF), collector number 230a. Current market price: $0.08 (foil $0.19), TCGplayer market prices via Scryfall.
Visit — An opponent chooses "the fastest," "the scariest," or "the weakest." You choose a creature, then ask a person outside the game to choose the creature that best fits the chosen criteria. If they chose the same creature you chose, claim the prize! Prize — Create two 1/1 red Balloon creature tokens with flying, then sacrifice The Superlatorium and open an Attraction.