He uses that Shout to dodge once more -Oakflesh or no, he's not about to stand there and let himself get shot- as the wolf goes on its final attack; the shocks have certainly slowed it down, but much like its master, it's a tenacious little bastard.

He'll coat more of the ground near her with that quickly-melting frost once he finds his feet again, and once his throat has recovered from the last shout, he turns his attention to that boulder. "Fus Ro Dah!"

Unrelenting Force would have moved it one way or another, but thanks to the mud it skids away more easily than it might have otherwise.

And then he's on the move again, pondering the wisdom of either conjuring up his familiar again once it's dispelled, or summoning an Atronach after all.