Waver isn't going to end up being of much use past fighting Diarmuid, since he has a detailed understanding of his skills and how to get around them. And, y'know. Psychological trauma and all.

He'll probably stick around and keep fighting after the fact, and he does have an automatic shield that might be of some use to anyone standing near him. His magic isn't fully back to capacity yet, so he'll be relying on what he can do with Volumen Hydragyrum as well as a pair of daggers and hand-to-hand fighting.

If anyone wants to back up/work with him, hit me. <3