As Booby Trap 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 Booby Trap. If you do, Booby Trap deals 10 damage to that player.
If a single Booby Trap’s ability triggers multiple times, then only the first ability to resolve causes Booby Trap to be sacrificed and damage to be dealt.