Скачать или смотреть kamihime project : upgrade weapon skill by grail [JP Server]

for player that participate in Union Battle event will gain lots of grail ,this items use for upgrade your weapon's skill level so go find an active union to stay for grail and some good ssr weapons.

my plan to use this items is

r rank grail : just use it when you obtain it ,one r rank grail will increase percent chance for upgrade skill level equal to two r rank weapon.

sr rank grail : use it for upgrade your weapon skill between level 21 to 30 is the best way to use by this chart below

level 20 to 21 two grail sr lv.4
level 21 to 22 two grail sr lv.4 + two r weapon
level 22 to 23 two grail sr lv.4 + four r weapon
level 23 to 24 two grail sr lv.4 + six r weapon
level 24 to 25 two grail sr lv.4 + sr weapon lv.2 + r weapon
level 25 to 26 two grail sr lv.4 + sr weapon lv.3
level 26 to 27 two grail sr lv.4 + sr weapon lv.3 + two r weapon
level 27 to 28 two grail sr lv.4 + sr weapon lv.4
level 28 to 29 two grail sr lv.4 + sr weapon lv.4 + two r weapon
level 29 to 30 two grail sr lv.4 + sr weapon lv.4 + four r weapon