With its crystal ball, it can see the future and project visions of it to people. An untrustworthy Pokemon at heart, do not trust its visions unless you pay it: It always gives honest visions for payment.
It can view the future, but it enjoys showing false visions to those who ask to see the future in order to terrify them.
Its crystal ball lets it show visions of the future. Give it payment to be safe, though: It isn't very trustworthy if it tells for free.