Tarotry is divination by cards, laid out in a prescribed spread and read by their meanings and by their positions relative to one another. Each card carries a settled significance; what a reading turns on is which cards fall where, and what they say about each other.
It is the art of people and their entanglements — who is working against whom, where a loyalty actually lies, what a person is afraid of, what is already in motion around them. It answers in the shape of a story rather than a fact, and a reader pressed for a plain yes will lay the cards a second time and give the same story again.
Invoking it. A reading is a Success Test like any other Mystical Ability, and the success level buys the quality of the reading: nothing on a Marginal Failure, a true but partial answer on a Marginal Success, a clear one on a Critical Success. A Critical Failure here is the most dangerous of any art’s, because the false answer arrives as narrative — not a wrong fact but a wrong story, coherent, satisfying, and believed by the reader who delivered it.
What bears on the test. A reader works from their own deck, kept and handled by them alone; the cards are held to take an impression from their reader, so a borrowed or newly bought deck reads at a penalty until it has been carried and used for some while. A deck the subject has shuffled reads better, which is why a reader hands the cards over before laying them out. The subject should be present, or something of theirs be there to lay the cards on. No divination answers under Aural Shock, none may be fated, and the same question put to the same art again returns its first answer until circumstances have materially changed.
The art, and the reading of its results, are set out under Cartomancy and Divination.