- "Dark Magical Circle" appears in this card's artwork.
- This card has the highest Level, ATK, and DEF of all Spellcaster monsters.
- This card is the first monster with 4500 DEF, as well as the first Level 12 Spellcaster monster.
- This card can be seen as a Spellcaster counterpart to "Five-Headed Dragon", as both cards are DARK Level 12 Fusion Monsters whose Fusion Materials are 5 monsters with the same Type which are inclined to be different in some capacity by the card's effect.
- This card has a different reference to the number 5 in it's name, Fusion Material, effect and artwork, with it's name of Quintet referring to a group of 5 people, it requiring 5 Spellcasters to be Fusion Summoned, it's destruction effect being capable of activating if it was Fusion Summoned using 5 different Spellcasters, and there being 5 different "Dark Magical Circles" in this card's artwork.