Knave in Black is a playing card in a deck of cards. It represents a card of enigma, power, and intuition. The Ace of Black might also indicate a person of dark complexion or a person that is proficient in their craft. This symbol commonly carries an
air of being puzzle and might suggest the importance of trusting one's own
instincts in a situation.
Why Is the Ace of Spades So Powerful and How to Use It