• This card is named after the symbol on its staff. Kerykeion is an alternative name for the Caduceus, a symbol of commerce.
  • This monster may be a corrupted grown-up version of "Constellar Rasalhague", as seen with its face helmet and the Caduceus/Rod of Asclepius, along with being the same Type as its previous form.
    • According to the Duel Terminal Storyline in the Duel Terminal Master Guide 2013, "Constellar Rasalhague" used the power of the "Gishki Aquamirror" to fuse itself with the 3 corrupted "Ice Barrier" Dragons to become "Evilswarm Kerykeion" in order to defeat "Sophia, Goddess of Rebirth" together with "Constellar Sombre", which means that it is not a true "lswarm" monster and also is not completely corrupted per se, as compared to the other Duel Terminal monsters infected by the virus of "lswarm"; this explains the "Constellar" symbol that can be seen on the "Aquamirror" staff that it is holding.
  • This is the only "Evilswarm" monster whose ATK does not end in 50, hinting to the fact it is not a true "lswarm" monster. "Evilswarm Exciton Knight" also shares this
  • This card has a direct "Constellar" counterpart, "Constellar Sombre".

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