Kallista is a slight tiefling with skin the color of cooled ash and two long, obsidian horns that curve backward over her scalp. Her eyes are solid pits of dim violet light that flicker when she is agitated. She wears layers of tattered, dark leather and silk that look scavenged from better times, and her fingers are perpetually stained with soot and old ink.

Kallista is cynical and weary, carrying the weight of someone twice her age. She masks her physical weakness with a sharp tongue and a prickly exterior, rarely letting anyone see how much she struggles to manifest the smallest spark of magic.

Born to a family of failed merchants in a bustling port city, Kallista quickly realized that her infernal heritage and lack of physical prowess made her an easy target. She turned to the city's underbelly for survival, becoming a runner and locksmith for local syndicates. Her magic manifested during a botched robbery, more as a desperate sneeze of energy than a calculated strike, accidentally causing a fire that allowed her to escape but cost her the guild's trust. Now, she is a sorcerer by necessity but a criminal by trade. She treats her magic like a temperamental tool that often refuses to work when she needs it most. Every flicker of purple flame is a reminder that she was born for something grander than she can currently achieve, leaving her bitter but driven to find more power.