The Saint of Swords and once cut my aspect domain, using Sever. The same aspect we’d made into the blade. So it still should be capable of that, with the right guidance. The first time I’d reached for my third aspect, Masego was forced to cut it out of me.

...

I paused a moment, choosing my words so I could ask him to cut my third aspect out of me in a way he would not refuse. It was the mutilation of my soul, but it was also a way out of the trap I had fallen into.

- Book 7, Chapter 68: Hallow; Hollow