The Fortune-Seeker doesn't have a specific duty, she is more or less a traveller and doesn't tend to stay in one place for a long period of time, the road is her home and destinations are merely a place to visit. She is the goddess of travel, but also change and luck. In the Triumvirate, she was a Liason for the Gods and the People before the Ritual of Separation, now she is merely a Liason for the rest of the gods when they don't want to leave their home plane. She is the patron goddess of gamblers, charlatans, and many 'diamonds in the rough'.
Isentia is a minimalistic god, most of her time is spent travelling, as travel is one her few domains. The only thing she carries in the artwork she is in is a single golden chalice covered in beautiful gems. Nothing is ever in the chalice, but in many stories, they tell of whatever she needs will appear in the cup. Her blessing is also stored in this cup if you can hold the cup (or one of the Sister Cups) you have her blessing. If you take a sip of the infinite nectar in the cup, you are one of her few champions.
The Fortune-seeker is a small Halfling woman, with golden hair. Her hair is long and silky, and her golden hair makes the clothing she wears. Though it is all hair, it is very diverse, much is golden in colour. But there are some brassy colours, and bright sky blue. Her skin is copper in hue, and eyes are blue and pupil-less but the whites are still there.