Pathfinder: Avengers of Westcrown
Possibly the most combat-capable person we've ever met. Now focused on dental work.
Sian first encountered the Avengers in the Asmodean Knot, there on assignment from the shadowy group known as the Council of Thieves, sent to steal the Chelish Crux.
Conflict ensued, but once she realized that ShadowBlade had already nicked said crux, and the assembled group was
very good at murder super nice, she decided that if she couldn’t complete her assignment, might as well throw in with this lot, as the Council doesn’t much like failure.
She’s focusing on dental work now, which probably gives the Avengers the best benefits plan of any rebellion in Golarion’s history.