Kallista has lavender-toned skin and a pair of majestic, forward-swept black horns that resemble mountain peaks. Her eyes are a solid, liquid gold without pupils, often appearing as though they are tracking things invisible to others. She wears tattered, earth-stained robes that smell faintly of ozone and pine, with her long, thin tail usually wrapped nervously around her ankle.

Kallista is quiet and socially detached, often drifting off in the middle of sentences to observe the way the light catches a dust mote. She speaks with an eerie calmness, even when her magic begins to crackle uncontrollably, and she frequently treats inanimate objects as if they have feelings.

Born in the crowded slums of a coastal city, Kallista was abandoned by her family when her magic first manifested as a localized storm that turned the family dog blue and melted the silver cutlery. She fled to the desolate Star-Peak mountains, spending a decade in isolation to understand the 'Great Hum' that pulsed through her veins. She believed herself a danger to the world until her 'Discovery' changed everything. While meditating beneath a lunar eclipse, Kallista saw the weave of reality not as a tapestry, but as a vibrating string under immense tension. She realized the chaos within her was not a flaw, but a response to the universe's own instability. She has now descended from her hermitage, driven by a vision of a coming cosmic imbalance that only her wild, untethered power can potentially counter.