Focus increases the chance of getting a critical hit. It also increases user's Focus against other attacks, helping in other things, such as increasing your ability to focus on your target.
How To Train
* Every time you perform a critical attack has a chacne of increasing this passive.
When you get hit has a chacne of increasing this passive.
Keeping your eyes on the opponent when they attempt to make you lose target has a chacne of increasing this passive.