Board Thread:Wikia Discussion/@comment-27279544-20170528163214/@comment-24930367-20170617152932

You can level the skill with just 1% chance.

It's RNG.

Do you like RNG everywhere? Then go with less than 100%.

Do you want to spare your RNG for something else? Go 100%.

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I really suggest not to neglect Colossus & Leviathan's SR weapons, and Yggdrasil's...Bark. All of them gives Might skill and will definitely help in long run.