Kensai

Kensai [Combat]

By feeling out the enemy with probing attacks, you can predict and defeat your enemy's strikes.
Prerequisites: One or more [Style] feats, 6th level
Benefit: During an attack action, you may intentionally make any number of your attack rolls miss before rolling them. For each attack you intentionally make miss this way, you gain one focus point. As a free action, you may spend one, two, or three points of focus, gaining a bonus equal to the number of points spent to your choice of attack and damage rolls or AC and saves for 1 [Round]. You may spend no more than three focus points in this fashion per [Round].