Every 2 levels of Hack and Slasher user learned, increases physical damage against all race monsters (except players) by 1%.
When equipped with Rune Knight Stone (Upper), every 2 levels of Two Hand Defending user learned, increases physical damage against all size enemies by 3%.
When equipped with Rune Knight Stone (Middle), increases Hack and Slasher damage by 10%.
When equipped with Rune Knight Stone (Lower), C.Rate + 3, increases Storm Slash damage by 15%.