It's more or less a Resourceful but for spells. Being , it has a game attached to it. I think this is mostly a chaos bag Mystic kind of card, most likely limited to Jacqueline, but fun if you like gambling. Most Mystics will prefer to take Fearless, Guts (2), or maybe Defiance for a willpower boost.
Max 1 committed per skill test.
After you commit Prescient to a skill test, name "even," "odd," or "symbol." After this test ends, if a chaos token of the named type was revealed during this test, you may return a Spell card from your discard pile to your hand.
Aim at Ward of Radiance and you got yourself a good encounter prot against non- treachery cards.
The real problem is that there's a lack of really good recur targets. Your spells with charges don't self-discard. Seal of the Elder Sign, Seal of the Seventh Sign, The Eye of Truth all can't be recurred. Deny Existence (5) can be, but it's a defensive card, not a combo piece. If there were a really strong repeated mystic event, Dayana Esperence would be much stronger than she already is. The best target is probably just a Ward of Protection or a Recharge (4).
Also worth mentioning that Eldritch Inspiration (1) allows you to recur two cards.