What level are you at the moment ? If you add enough dex your damage, critical hit chance, and hit % will all increase. At low levels such as 2-17 bears are really powerful if the use a long range weapon (bow or a staff) make sure you add points to the skills called rage, iron blood, and stomp. Stomp is one the most powerful move for ursans and also damages all of the opponents in your range. Rage greatly increases your damage and is vital for success. Part of being a bear is able to survive heavy damage, the skill iron blood helps increase your armor. Once you are in the 20's you will unlock a skill known as evade which increases your dodge. While it is useful, it is not as important as the others.