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- The Kanji on the front of the castle reads "Yami", which means "dark" or "darkness" in Japanese.
- This card is one of the few monsters whose ATK or DEF is not divisible by 50. Others being "King of Yamimakai", "Sword Arm of Dragon", "Dark Chimera", "Barox", "Reaper of the Cards" and "Number S39: Utopia Prime". Notably, PaniK had most of these cards in his deck (except for "Number S39: Utopia Prime" who was used by Yuma Tsukumo and "Sword Arm of Dragon"), and they were all present in his duel with Yugi.