From the publisher:
The Destiny Deck is an RPG accessory designed to be used with any Roleplaying Game system, in any genre. As a game aid, it will yield instant scenarios for: on-the-fly playing; time-limited games; "bridging" vignettes and the vignettes within; fleshing out a character's background; etc. It is also quite fun and useful as a "Game Masters' Workshop" device to improve Game Mastering skills, from concept to story telling.
End publisher's description.
The Destiny Deck consists of 108 cards and is subdivided into four decks:
The game with a four-page instruction booklet detailing many different ways to use the cards.