Air was displaced. The construct rushed her, and it was only just in time that she deflected two heavy overhand blows onto the naked black blade of her sword. Harrow let out a yelp as though she had touched her hand to a flame.
“Nonagesimus!”
Gideon considered the good news and the bad news. The good news: the blows that rained down on her were not as heavy as she had expected from something so enormous. They came down hard and fast, but no harder than the hand of Naberius Tern; lighter, for the lack of muscle. Osseous matter never weighed as much as blood and flesh, which was one of the problems with pure construct magic.
The bad news: she couldn’t do jack shit to it. Her light sword could barely deflect the blows. She had some small hope with her obsidian knuckle-knives—one good strong backhand bash and she had knocked out part of one arm, snapping the blade off near the tip—but then watched with a sickening weight in her gut as the blade reformed.

Gideon the Ninth - Act Two, Chapter Fourteen