Card Trivia:Rainbow Dragon
- This is the cover card of Tactical Evolution, and is also one of the cover cards of the Collectible Tins 2007 Wave 2, Duelist Edition Volume 2, and Duelist Pack: Jesse Anderson.
- This monster appears in the artworks of "Awakening of the Crystal Ultimates", "Fusion Over", "Rainbow Bridge of Salvation", "Rainbow Bridge of the Heart", "Rainbow Path", and "Rainbow Refraction".
- This monster is based on the rainbow.
- This monster is a combined form of the seven "Crystal Beast" monsters, which are each based on a color of the rainbow.
- "Ruby Carbuncle": red
- "Amber Mammoth": orange
- "Topaz Tiger": yellow
- "Emerald Tortoise": green
- "Sapphire Pegasus": blue
- "Cobalt Eagle": indigo
- "Amethyst Cat": violet
- In the Yu-Gi-Oh! GX anime, this card required all 7 "Crystal Beast" monsters to be Summoned.
- This monster is a combined form of the seven "Crystal Beast" monsters, which are each based on a color of the rainbow.
- This is the signature card of Jesse Anderson in the Yu-Gi-Oh! GX anime.
- This card has several counterparts:
- A dark counterpart: "Rainbow Dark Dragon".
- A "Malefic" counterpart: "Malefic Rainbow Dragon".
- Two upgraded Fusion forms: "Rainbow Overdragon" and "Ultimate Crystal Rainbow Dragon Overdrive".
- A "Crystal Beast" younger form: "Crystal Beast Rainbow Dragon".
- This card also has a Fusion with "Elemental HERO Neos": "Rainbow Neos".
- This card's attack name in the Japanese version of the Yu-Gi-Oh! GX anime, "Over the Rainbow", is a reference to the titular song of the film The Wizard of Oz.
- This card is the first Holographic Rare to be released in the OCG and the first Ghost Rare to be released in the TCG.
- Some of the 1st Edition Ghost Rare prints of this card in Gladiator's Assault were misprinted with the artwork of "Elemental HERO Chaos Neos", and some of the 1st Edition Ghost Rare prints of "Elemental HERO Chaos Neos" were misprinted with this card's name.
- In the OCG version of Duelist Pack: Jesse Anderson, this card was reprinted as a Rare, but was not included in the TCG version.
