Callista Gearwright is a small, wiry gnome with an unmistakable air of eccentricity. Her wild Blond hair is perpetually frizzed, as though she’s been shocked one too many times by an experimental device (which she has). A streak of silver runs through one lock, a "souvenir" from an energy-core accident that left her more determined than ever.

Her large, golden eyes shine with curiosity, rimmed by dark circles that hint at sleepless nights spent tinkering. A thin pair of goggles sits perpetually on her forehead, the lenses smudged with soot and grease. Her rosy skin is marred with tiny nicks and burns from countless experiments gone awry, but she wears them like badges of honor.

Callista dresses in practical patchwork clothing adorned with pockets, straps, and utility belts brimming with tools, gears, and vials. A leather apron, charred at the edges, is secured over her tunic, and her boots are scuffed from endless hours scouring ruins. Around her neck, she wears a pendant crafted from a shard of Aetherheart's original core, glowing faintly with a soft blue light.

Her mechanical companion, Aetherheart, is a sleek, bird-like automaton with intricate metallic feathers and glowing eyes. Its wings hum softly when in motion, and it always stays close to her, as if guarding its creator.