Aleema Keto is a human Sith sorceress of the Tetan nobility and co-founder, with her cousin Satal Keto, of the Krath — a dark side society formed out of what began as an aristocratic hobby. She appears in Dark Horse's Tales of the Jedi from 1993.
Her particular gift is illusion, which the comics use well: Aleema wins fights by making fleets see things that are not there, and loses her last one because Exar Kun knows it. The Krath's overthrow of the Tetan monarchy is what turns a private cult into a war, and it is the thread that pulls Ulic Qel-Droma into the dark side. Star Wars Legends.
Catalogue entry. This figure has a verified record here rather than a full write-up — the encyclopedia labels its own depth instead of padding it.