I'm saving up for slate + ash auras, any other unique sounding libraries that come to mind?
Checkin out the vid for dark matter now and it's def my cup of teaString Audio has some quite unique material. It has to be your cup of tea though, but if it is, it's going to be a splendid cup of tea
Lunaris from Luftrum, some amazing sounds in there!
And the libraries from Eduardo Tarilonte (Ancient Persia Era, Medieval Era 2, Celtic Era and look up his older ones on Bestservice as well) - that gets you some pretty unique sampled material.
Edit: oh and if you are into synths, check out Aparillo from Sugar Bytes.