Mark Chandaue's Ophiuchus - TrickMark Chandaue's Ophiuchus is a new tool for revealing a participant's star sign and date of birth, or one could call it an old tool used in a new and deceptive way. Ophiuchus comes with three effects: Basic effect: After testing the participant's intuition, the performer gives a reading and correctly reveals the participant's star sign. Intermediate effect: After testing the participant's intuition, the performer gives a reading and correctly reveals