The Ghost in the City -
Sierra isn't seen unless she chooses to be; even when seen, she is not always remembered. Maybe you've seen her somewhere before, or maybe you just think you have. Or maybe she's seen you.
Ephemeral Sorceress - Having wrested the esoteric power for herself, Sierra deploys multiple and powerful spirit Influences with preternatural ease. Wanna see something weird?
No One Can Hide - Sierra is a devastatingly effective tracker through both the Gurihal and Hisil. If you need someone found, she can help. Just ask really nicely.
Big Game Hunter -
Gods bleed, too.