The Inconceivable! pack is a deck of 6 Princess Bride-themed cards that can be used with our line of The Princess Bride games, any of your other favorite games, or even in real-life that require a quick decision!
Whenever you don't want to do something, shout "Inconceivable!" and draw a card. If it is an "Inconceivable!" card, you don't have to do that action! Discard that card face up.
If you draw "You keep using that word...", you are the unlucky one that must do that action. Collect all six cards together to be ready for future use!
—description from the publisher