Card Trivia:Number 91: Thunder Spark Dragon


 * This card is the second "Number" to be revealed only in the manga version of Yu-Gi-Oh! ZEXAL, the first being "Number 50: Black Corn".


 * The manga version of this card is the first Xyz Monster to require 5 Xyz Material
 * This card is the first Xyz Monster to have the number of Xyz materials changed for it's summon requirement when it's released in real life.


 * This card carries the name of its owner, Thunder Spark.


 * This is the first Xyz Monster that requires more than two Xyz Materials to activate its effect.
 * This is the first Xyz Monster that requires more Xyz Material than it needs to be summoned.


 * This card looks like a mix of an Electric Eel and a Dragon


 * This card was the third "Number" Yuma has obtained in the manga. In anime, it was "Number 83: Galaxy Queen".


 * Oddly, this card has no one way to obtain five Xyz Materials to trigger its effect.