Card Trivia:Fiend's Sanctuary
- In the original Yu-Gi-Oh! manga and anime, the "Metal Fiend Token" appeared to be made up of connected metallic balls rather than how the creature is shown in the card's artwork.
- Also, this card's owner, Seto Kaiba, claimed that this was the only card that could defeat "The Winged Dragon of Ra"; however, Yami Yugi managed to defeat "Ra" later using a Quick-Play Spell Card with a destruction effect that also supported Spellcaster monsters ("Dimension Magic" in the manga, "Ragnarok" in the anime).
- This card has a "Speed Spell" counterpart: "Speed Spell - Fiend's Sanctuary".