Training a new skill may be reccomendable.
Raline, if you didnt know already, different monsters, tho aremorless, are considered to be wearing different types of armor, ie: Light armor, medium armor, or heavy armor, monsters such as a rat, have a very soft hide/skin, so they could be considered light armor, thus a sharp blade cuts them up, and a blunt weapon has slightly less effect, A monster like an ulbernaught has a heavy thick hide, and I would assume is considered to have heavy or medium armor skin, so blunt damage would probably do more to them, anyway, they point is to try different types of weapons.