For now, ill have to melee with my scarring dagger, Sarah aint afraid of diseases by cutting herself after, high immune system . If we can find some wood at some point, twine would also be useful (do we pass a shop at some points?), she could fashion a bow and some arrows, but shed still keep that blade, she could not cast while using the bow.

As for travelling, she has eight for senses, put her in the middle if there is a running order, also, at night, shed be pretty good to take some of the sentry duty, a couple of hours is all she needs to meditate.