Blocks Harry's force rings

I'd gotten enough of my head back together to push myself to my feet. Lara never looked at me, but I could sense her attention on me nonetheless. I didn't have time to gather my will for a magical strike. The skinwalker would feel me doing it long before it became a fact.
Fortunately, I plan for such contingencies.
The eight silver rings I wore, one on each of my fingers, served a couple of purposes. The triple bands of silver were moderately heavy, and if I had to slug someone, they made a passably good imitation of brass knuckles. But their main purpose was to store back a little kinetic energy every time I moved one of my arms. It took a while to build up a charge, but when they were ready to go, I could release the force stored in each ring with instant precision. A blast from a single band of a ring could knock a big man off his feet and take the fight out of him in the process. There were three bands to each ring-which meant that I had a dozen times that much force ready to go on each hand.
I didn't bother to say anything to Lara. I just lifted my right fist and triggered every ring on it, unleashing a pile driver of kinetic energy at the skinwalker. Lara bounded forward at the same instant, swords spinning, ready to lay into the skinwalker when my strike threw it off balance and distracted it.
But the skinwalker lifted its left hand, fingers crooked into a familiar defensive gesture, and the wave of force that should have knocked it tail over teakettle bounced back from it like light from a mirror-and struck Lara full-on instead.
Lara let out a startled whuff as the equivalent force of a speeding car slammed into her, knocked her back, and flattened her against the mound of rubble still filling the hallway behind me.
The skinwalker's mouth split into a leering smile of its own, and its bestial voice purred, "Break, little phage. Break."
Lara gasped and lifted herself up with her arms. Her white eyes were fixed on the skinwalker, her lips twisted into a defiant snarl.


Turn Coat Chapter 26, Page 240-241