Booby Trap is a rare Artifact card from Ninth Edition (9ED), collector number 289. Current market price: $0.59, TCGplayer market prices via Scryfall.
As this artifact enters, choose an opponent and a card name other than a basic land card name. The chosen player reveals each card they draw. When the chosen player draws a card with the chosen name, sacrifice this artifact. If you do, this artifact deals 10 damage to that player.