"I'm not any sort of expert, but I have seen regular Darkspawn up close. I'm happy to answer any basic questions, though you might find a Gray Warden would know more, given their training. As for Corypheus..." He indicates the neat but substantive pile of notes, letters and books on his desk and the shelves behind him. "It's what we've been working on. There's no precedent that we know of, even for those of us native to Thedas. So you're only a few years behind at worst, on that topic."