Weapon Proficiency/Predator's Keen Eye

Predator's Keen Eye is a proficiency skill for bow in Sword Art Online: Integral Factor. It increases Attack against an enemy with HP below 50% depending on the level of the proficiency skill when the player has a bow equipped.

The table below shows the level of the mastery skill, how much the Attack is increased, prerequisites to level it up, and the materials required to level up the mastery skill.