Usually only people who have died know the specifics.

[Carefully, he unfolds the wing just enough to spread the feathers out a little, giving more flat surface that isn't bordered by a razor's edge. As they move, the light plays off them about as one would expect for something so perfectly smooth.]

If you would like, I could teach you a bit of swordsmanship. I'm afraid you would have to find a way to acquire a real weapon yourself, though. Neither of my swords work properly unless someone from my own world is the one trying to use them.