Knave for Spades symbolizes authority in a set of cards. It is considered a representation of enigma, power, and intuition. The Jack of Black might also indicate a person of dark complexion or someone who is skilled in a particular field. This symbol often carries an air for mystery and may signify a need to trust one's own instincts when faced with circumstances.
Jack of Diamonds meaning in Cartomancy and Tarot Cardarium
