Primarina is a female, originally quadrupedal, now bipedal, aquatic siren-like Water and Fairy-type "Soloist Seal" Pokémon with a white sea lion-like body, a ruffled light blue fin wrapped around her chest like a shawl with similar fin structures draping around her waist, and the tip of her light blue tail ending with a white, forked fin, decorated with small, pointed pink fins along the hips. She has serene blue eyes with long white eyelashes, a round pink nose, long, flowing, light teal colored hair pulled into a ponytail by pearl strings, and wears a tiara-like headpiece made of white pearls and pink starfish accents.

In combat, Primarina treats every combat encounter as a theatrical stage, using sonic vocal waves to conduct and maneuver sparkling water balloons, some of which explode upon contact, and sound-based attacks that have a unique effect or deal a sort of disorienting damage to her opponents.

Art created by: Emperor1704 (Twitter/X)
Link: https://x.com/Emperor1704/status/2066333257747292209?s=20