Double update because why not
This is Curlewstar, she and her story are mentioned in the part before this one. She doesn't have the moth wing in game, but I imagine that both medicine cats and leaders get an accessory. Medicine cats will usually get plants or herbs while leaders get other things like feathers, thorny vines, and specifically sprigs of laurel. Curlew got a moth wing!
I haven't figured out yet if I want StarClan cats to give the living cats their accessories or if I want them to just go out and find them, but I'm planning on drawing the current med cat, Mistwhisker, so I'll probably have figured it out by the time I draw and post him :)