• This card's ATK and DEF is the reversed ATK/DEF of "Kaien the Emissary of Darkness", which is also where the Japanese name of the Token this card produces, "Kaien the Emissary of Darkness Token", is derived from.
  • This monster bears a resemblance to the Bakugan character Masquerade, except having a darker color scheme.
    • Both characters also have some relationship with a type of underworld. This card's original name is "Gorz the Emissary of Hades", while Masquerade has sent Bakugan to the Doom Dimension, which he referred to as "The afterlife for Bakugan".
    • The token summoned by this card's effect is named "Kaien the Emissary of Darkness". She is a LIGHT Fairy-type Monster, in direct contrast to the DARK Fiend "Gorz". Coincidentally, Masquerade was later revealed in the anime to be the alter-ego of Alice Gehabich, another Bakugan character. Masquerade is known for being merciless and cruel, while Alice is kind and polite.
  • This is the only promo card to date which does not have the golden hologram in the corner.
  • This monster appears in the artwork of "Stairway to the Underworld".
    • This card's TCG/OCG effect has a similar condition to "Stairway to the Underworld's" effect in the manga, where this card has no effect.
  • The Ghost/Gold Rare version of this card's artwork changes colors, unlike most other Ghost Rare cards.[citation needed]
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