Forest Dweller

You feel his mind in the back of yours like a mirror, and connect with it. He seems surprised and the rocks falter as he tries to push you out, but you now know what to do. You perform the necessary handsigns and point your hand, changing the direction of all of the rocks. They barrage him relentlessly and he falls to the ground, leaping up at once. What does it take to beat this guy? You're a little beat from using your energy like that, so you know you need a few seconds to recover.