On the first step, the White Knight breathed in. Light, never far from his grasped, stormed through his veins. On the second step, the White Knight breathed out. He grasped the Light by the reins, shaped it and directed it. On the third step, the White Knight acted.

...

All that was left was the flickering flame of the torch he’d thrown, arcing up and forward, and even as the Revenant faded into the darkness the White Knight smiled. And stomped his armoured boot onto the ground, releasing Light in a wave. The Revenant’s looming silhouette reappeared, seemingly startled, and Hanno idly confirmed that his guess had been correct. It was the armour that allowed him to disappear, that same armour touching the stone floor he’d just shot Light across. Modern sorceries might not be so easily disrupted, but this was ancient magic: it shattered at the slightest touch of Light.

- Extra Chapters: Winter IV