Don't worry about disturbing things, the way this RP works is sufficiently organic that it can adapt to just about anything, and when it comes to the character working as a part of the group, I think disturbances would come down to personality and motivations over actual combat ability (and other abilities, for that matter; far from every problem is solved by fighting, even though it might not seem like that sometimes).
A god of wisdom and strength sounds like Deliph, the god of tactical warfare, to me, if it's specifically those two qualities you're looking for. At least I think it'd be the best fit without me having to create a new deity.