She refreshes the action. And you skip your turn.
Thin mechanic, sure. But it still seems like giving her the amulet is the most profitable option.
You can't. Only Imperial origins are available to you.
I mean mercenaries. They weren't banned from being hired, were they? That's basically the only option until you've gathered the Knights.
Can a joined Knight move immediately?
e si ieu muoir, er mi grans deliuriers