Board Thread:Wikia Discussion/@comment-27279544-20170528163214/@comment-27279544-20170617153152

TheXAir wrote: ah i see.. thanks for the info PunPun.. i thought it's a chance using RNG but need to make sure to get 100% to be able level up the skill right..? The percentange is based on the number of the skill and how many materials, for example to reach lvl 2 skill you just need 2 SR weapons or like 4/5 R weapons, but to reach level 3 you need way more stuff, like 4 SR and 1 Fury stone...

I'm not sure if you can upgrade a skill by accumulating percentage until you reach 100%, but since you can just always wait until you have enought stuff to upgrade and always get 100% rate, i think it's better to upgrade when you have enought materials to always have 100% rate...