Card Trivia:Clock Tower Prison
- This clock tower appears in the artworks of "D - Tactics" and "Eternal Dread".
- This card is based on the Elizabeth Tower, which is more commonly referred to as Big Ben.
- In the Yu-Gi-Oh! GX anime, this clock tower was shown to strike the hours of 3:00, 6:00, and 9:00 for each Clock Counter placed on this card. When the fourth Clock Counter was placed, the clock striked 12:00 and vibrated ominously.
- This card's effect to Special Summon "Destiny HERO - Dreadmaster" is a reference to the Man in the Iron Mask, an unknown prisoner who was arrested in the late 17th century and held in various French prisons.
- This card was the first Field Spell Card to have an effect that applies only to its controller.
