The constraint is always raw material. She has no shortage of ideas or time in which to put them into practice. Hence, she is most avaricious in acquiring hearts whenever an opportunity presents itself. Having a stockpile means she need waste as little time as possible.
The girl yelps and then trembles, but holds very, very still otherwise, wide eyes fixed firmly on Shade.
She kneels down and draws out a knife.
"You're being very cooperative, you know that?"
"I like cooperative." Shade caresses the girl's cheek with the flat of her knife. "If you stay like this, maybe I'll let you live when I'm done."
The girl would disagree that this is fun, but is very cooperative nonetheless! And very appropriately terrified and in pain and miserable and overwhelmed, at often very proper moments!
After the final round of healing, Shade stands back up, sheathing the knife.
"Run along when you feel up to it, then."
Choked sob. The girl curls in on herself for a bit, then gets up and starts to stagger off.
"Searching for psychological traits is actually quite tricky, you know," she says, voice a bit teasing.
She laughs. "I'll hold off on telling you when you're being impressive then, shall I?"
"We should probably plan for tomorrow. I don't think it will be as easy as today."
"And whoever chooses to follow us. Which will probably be very few - I have a good sense of most of them, and this won't be an interesting hunt to them, not yet."
"Do you have anything more about where he is, what his defenses are?"