By the time critical hit can be skilled, you do not more dmg with sword than 3. The first level of strength gives you +2. That gives you almost double damage for every single strike.

Superior naga silk sword doesn't make sense either, since you will be using Firesword against humans and animals and the lightning daggers against goblins and orcs, these weapons do more than double damage when they hit their specific weakness targets and they require strength.

So what the heck is the purpose of level 1 & 2 critical strike really other than making the game more difficult) (which I welcome now in second run lol)