Card Trivia:Corrupted Keys

"Corrupted Keys":

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• Appearances

• 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.