Syl- Is this a feat? Idk

Standing before the deathspren was a tiny figure of light. Not translucent, as she had always appeared before, but of pure white light. That soft, feminine face had a nobler, more angular cast to it now, like a warrior from a forgotten time. Not childlike at all. She stood guard on his chest, holding a sword made of light.

That glow was so pure, so sweet. It seemed to be the glow of life itself. Whenever one of the deathspren got too close, she would charge at it, wielding her radiant blade.

The light warded them off.

But there were a lot of deathspren. More and more each time he was lucid enough to look.

The Way of Kings Chapter 38