I, myself, only recently obtained my first and only Draugr Elite trophy, had no idea it was a resource for a weapon. Should camp a spawner, just to see if it rolls over easier in those...

I've managed 2 cultist and 2/3 Ulv trophies in ~8 Frost Caves....so, not so rare on my RNG, while Wraith[2] and Stone Golem[0] are super rare. Only 1 set of Rancid Remains, although I'm pretty much out of any Crypt crawling in the Black Forest.