Card Trivia:Evilswarm Kerykeion
- This is one of the cover cards of Legacy of the Valiant: Deluxe Edition.
- This monster appears in the artwork of "Jewels of the Valiant".
- According to the Duel Terminal Master Guide card storylines, this monster is the evolved form of "Constellar Rasalhague" after using the "Gishki Aquamirror" to fuse with the three "Evilswarm" dragons ("Evilswarm Bahamut", "Evilswarm Ouroboros", and "Evilswarm Ophion") and the crystallized power of "destruction" from "Sophia, Goddess of Rebirth".
- This monster is named after kērū́keion (κηρύκειον), the Greek word for the "caduceus", a staff entwined with two serpents.
- As such, this monster is likely the base form of its upgraded "Constellar" form, "Constellar Caduceus". This is based on how both monsters highly resemble each other, how they are named after the staff entwined with two serpents, and how the upper portion of the staff wielded "Caduceus" highly resembles the logo of the "lswarm" archetype.
- This monster and "Evilswarm Exciton Knight" are the only "Evilswarm" monsters whose ATK do not end in 50, as they are not corrupted by the "lswarm" virus.
- This monster has two archetypal counterparts:
- "Shaddoll" counterpart: "Qadshaddoll Keios".
- "Zefra" Pendulum counterpart: "Shaddoll Zefranaga".
- This monster has a "creation" counterpart: "Constellar Sombre".
- Both monsters' Attributes are opposite of each other; this monster's Attribute is DARK, while "Sombre's" is LIGHT.
- Both monsters' original ATK and DEF are an inverse of each other; this monster has 1600 ATK/1550 DEF, while "Sombre" has 1550 ATK/1600 DEF.
- Both monsters' effects are parallel of each other, with the only difference being that they support their own respective archetypes.
