Card Trivia:Omniscience Dragon, Fernyiges

• This card's name references the Hungarian folklore "Vitéz János és Hollófernyiges (Sir John and Hollófernyiges)". In this tale, Hollófernyiges is a "dragon prince" who had kidnapped Sir John's wife, which leads to John rescuing her, and Hollófernyiges later dies by falling off of his flying horse as John was chasing him.
• This card was called "Demon Teacher" during the test plays (possibly at the time its card name had not been decided yet), according to the Japanese Vanguard Column.