- "Arcana Extra Joker" is the evolved form of this monster.
- This monster appears in "Joker's Straight", "Face Card Fusion", and "Court of Cards".
- This card is designed after the playing card "The King".
- This monster's crown appears in the artwork of "Burden of the Mighty".
- This card's OCG/TCG artwork is taken from Yu-Gi-Oh! Duelist Duel 195: "Secret Plan to Call God!", specifically from the panel where this monster is shown being Summoned.
- It is possible that the popular indie game Undertale had the character Asgore Dreamurr's design based off of this card.
- Unlike "Queen's Knight" and "Jack's Knight", this card is an Effect Monster instead of a Normal Monster.