I can't really give suggestions at the moment on descriptions without anything specific to go off of. The only advice would I have to offer at the moment is to write what you "see." Visualize it in your head, like a movie, then turned those pictures into words. A motion picture, only with letters instead of colors.

Hmm. For how his powers would act... How are they typically controlled? Maybe they would act like a wild animal of their own, acting with the primal instincts of the wolf. Lashing out with a purpose, but perhaps less of a plan. Not as focused, but still enough to be capable of recognizing what the wolf's after, and subconsciously working toward that goal. Wild and out of control, yet centered on its feral desires. Maybe it would even accidentally get in the wolf's way, or unintentionally lash out at him if they both acted at the same time or just close enough to collide. Pretty sure I just repeated myself a few times in different words, but hey. I tried. xD