Card Trivia:Sage's Stone
- "Dark Magical Circle" appears in this card's artwork.
- This card's Japanese name, "Sage's Jewel" (賢者の宝石 Kenja no Hōseki), is based on the Japanese name of the Philosopher's Stone (賢者の石 Kenja no Ishi).
- This card's effect is the opposite of "Bond Between Teacher and Student": this card can Special Summon "Dark Magician", while "Bond Between Teacher and Student" can Special Summon "Dark Magician Girl".
- In Yu-Gi-Oh! Nightmare Troubadour , this card's name reads Sage's Jewel in the card menu and Sage's Stone on the card itself, thus having two names in the game.
- This card has a Rush Duel counterpart: "Jewel of the Dark Magician".