Card Trivia:Corrupted Keys
- The heads on the crystals look like Egyptian death masks.
- The card's Japanese name is a pun on the Japanese word shinkirou, meaning "mirage". Hence, "Umbral Horror Mirage Tokens".
- 3 "Umbral Horror Mirage Tokens" appears in this card's artwork.
- The number of tokens summon and part of their name being "mirage" can represent Yuma's first encounters with "Vector" as they turn out to be illusions.