Quote Originally Posted by Runolfr View Post
I'm not sure how to translate that into a Strength score.
As RMS explained, "Even if they were the minimum weights for their respective races, that adds up to 270 pounds, which requires a strength of 18 to carry as a heavy load."

That would give her +4 to hit and to damage. Given that she doesn't use a weapon, this seems pretty consistent with her combat abilities, like being able to trounce Haley and being able to stand up against our fine fighter friend (although she obviously has a worse BAB, AC and hit points than Roy does).