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.
Shade puts her foot on the girl's throat and presses down slowly, until she feels it collapse entirely.
"I'd suggest more practice. Either in magic on its own, or in the practicalities of hunting. Or we can plan our hunt tomorrow."
"I think so."
Much easier now that's she's had an experience with it. Similarly soft and vulnerable, lost, less inclined to struggle, good at making those faces she enjoyed seeing so much...
The Yew Queen seems rather enthused about that.
This path takes them farther, down to the flatter river valleys - and their prey seems to have favored hiding rather cleverly over running.
The prey's around the same age as the last, perhaps a hair older, eyes wide and breath fast, muscles trembling, when the hunters uncover her hiding spot.