I feel as though weapon attacks should be exclusive with utility and stuff being shared is the right way to go here. There are plenty of examples of games that do this to great success and others (rightfully so) may disagree with my opinion on the matter.
It can work either way. We do have very limited options for Weapon skills though, at most 1 skill type each, and then there's the Spear, which doesn't fit in anywhere. Only usable with Warfare abilities, but it requires Finesse and the Warfare abilities scale from Str.
I just would like dagger users to do as-much damage as Str users without having to spend a talent to catch up, and at least a little more if they have to have the inconvenience of getting behind the target first. Is that unreasonable?
