please expand on the fae + CPR evil ideas 👀
also do you mean that CPR doesn't work on the fae or that they have simply never developed it?
well im thinking mainly physiology-wise - fae can be so much more morphologically different from each other than humans can, and humans already have difficulty doing cpr especially different body types
fachons are half a body, cut vertically. where do you position your hands for compressions? dullahan have no heads - how do you give them rescue breaths? pixies are so small two inches of chest compressions would simply crush them like bugs, and a human-sized hand is maybe not even capable of exerting little enough force to give chest compressions of any depth without accompanying organ damage.
i think cpr on fae is probably possible - but you would have to invent one for every single type of fae body that exists, and it would have to occur to you this something that you could do
(however it does occur to me that with nymphs and maaaaybe pixies specifically, rescue breaths probably work better than on a human, because its mostly carbon dioxide)