The buffoon or "Bobo da Corte" is a promo card used to replace the Ambassador card.
A player who claims the role of the Jester can cause Disorder by taking a card from the Court deck and a target card (another player of his choice). The player can secretly change one of his cards between one of the two cards received. The player returns a card to the Court deck and a card to his target (the player he had chosen).
The target may also claim that the player does not have the role of the Jester and thus prevent him from having a stolen card and that the Jester himself collects a card from the Court deck.
If the target has a Captain's card, the Captain can claim the Jester in order to block the card's theft.
"The Bureaucrat" is a promo card used to replace the Duke (Duke) card.