A Crystal Ruby Mirror is a supposedly magical object. Some say that it grants good luck to the one who smashes it, but this isn't true. The truth is that the Crystal Ruby Mirror puts a curse on the one who smashed it... But the curse is sent back in time, giving that person bad luck in the past. The person will feel like they have good luck after smashing the mirror because the curse will have ended, and not having very bad luck feels lucky by comparison. The object's time warping powers are upsetting and confusing, so some would rather believe it has no powers, arguing that it is paradoxical and impossible.