Card Trivia:Mystical Beast of Serket
- "Temple of the Kings" appears in this card's anime artwork.
- The Eye of Wdjat appears on this monster's back.
- This monster is based on Serket, the Egyptian goddess represented by a scorpion.
- This monster is an upgraded form of "Millennium Scorpion".
- In the Yu-Gi-Oh! manga, this is not a physical card, but it can be Special Summoned using "Cup of Sealed Soul" and "Seal of Serket" while "Temple of the Kings" is face-up on the player's field.
- This follows the trend in the manga where Ritual Summoned monsters are not physical card, but are later treated as Ritual Monsters in the OCG/TCG. This, along with the required Spell Cards used to Summon it in the manga, explains why this monster is treated as a Ritual Monster in the anime; however, in the OCG/TCG, it is treated as an Effect Monster instead.
- This card's OCG/TCG artwork is taken from Yu-Gi-Oh! Duel 213 (Duelist Duel 154): "The Unexpected Card!", specifically from the 2-page panel showing this monster being Summoned.
- This card's anime artwork is taken from Yu-Gi-Oh! episode 87: "Awakening of Evil, Part 2", specifically from the scene showing this monster being Summoned while "Temple of the Kings" is in play.
