Weapon Proficiency/Kongou

Kongou is a proficiency skill for 2H axe in Sword Art Online: Integral Factor. If the player has less than 90% of max HP, all damage taken is reduced by some percentage, when the player has an axe equipped.

The table below shows the level of the proficiency skill, how much the damage taken is reduced, prerequisites to level it up, and the materials required to level up the proficiency skill.