• This card's Japanese name is "Raio" (or "Raiou") spelled in Katakana, meaning this card's name is most likely literally Raioh, and not meant to be translated. Rai-Oh literally means "Thunder King" so this is essentially named, "Thunder King Thunder King". "-Oh" can also be translated as "Emperor" or "Ruler".
    • Alternatively, "Rai-Oh" sounds like the Spanish word "rayo" and the Portuguese word "raio", which translates as "ray", or more befitting, "thunderbolt".
  • This card's name/appearance seem to be in reference to Susano-o, one of the primary Japanese gods. He is known to be god of storms.
  • Despite being given away with the second volume of the Yu-Gi-Oh! GX manga, its first appearance there wasn’t until chapter 20, which was published in volume 3.
  • This card is related to "Rai-Jin" and "Rai-Mei".
Community content is available under CC-BY-SA unless otherwise noted.