Card Trivia:Crystal Beast Cobalt Eagle
- This is one of the cover cards of Duelist Pack: Jesse Anderson.
- This monster appears in the artworks of "Crystal Aegis", "Crystal Beacon", "Crystal Conclave", "Jesse Anderson - Bonder with the Crystal Beasts", and "Rainbow Bridge of the Heart".
- This monster's crystal form appears in the artworks of "Counter Gem", "Crystal Abundance", "Crystal Beast Token", "Crystal Keeper", "Crystal Master", "Crystal Raigeki", "Crystal Release", and "Ultimate Crystal Magic".
- This card is based on cobalt.
- Unlike the other "Crystal Beast" monsters (which are each based on a gemstone), this monster is not technically based on a gemstone; however, it is also possible that cobalt was confused with the gemstones copal or coral.
- This monster is also likely based on cobalt blue, a transitional metal salt with a blue pigment made of cobalt, aluminium, and oxygen which features a crystalline structure.
- This card has an "Advanced Crystal Beast" counterpart: "Advanced Crystal Beast Cobalt Eagle".
- In the English dubbed version of the Yu-Gi-Oh! GX anime, this monster's voice, mannerisms, and various phrases are based on Maxwell Smart, the main protagonist of the 1960's TV series Get Smart.
- Despite being Summoned in five different Duels in the Yu-Gi-Oh! GX anime, this card's first effect was only activated once, 66 episodes after its first appearance in Yu-Gi-Oh! GX episode 106: "A Jewel of A Duel: Part 1".
- In the Spanish print of Force of the Breaker, this card's text features the word "regresar" instead of "devolver", which is the official Spanish term for "return".
