The default Palutena represents Rhea, a green-haired female magic-classed character who wears a white robe.
The white Giant Charizard minion represents the Immaculate One, the giant white dragon transformation assumed by Rhea.
The stage and music track represent the castle of Fhirdiad in the endgame Crimson Flower chapter of Three Houses, which features the final boss battle against the Immaculate One.
Other trivia:
This spirit's Neutral type references Rhea's status as an initial ally and a later enemy in Three Houses.
This spirit's Magic Attack ↑ ability references Rhea's Archbishop class, which allows her to use powerful magic-based attacks.
