Magic swordsman

You may have noticed I chose not to take the parrying line. That is only because as a Sword Master it is very easy to dodge attacks. If you’re unsure how good you are with dodging, get rid of the Dash Slash and Dash Combo skills and put some into Parrying. Although, once level cap is raised, you can put some into Parrying instead of removing the Dash skills since they are Dark attacks.
Your main damaging skills in both pvp and pve are in the magic line. Physical attacks are used when the enemy is too close.

Most of these skills are affected by Dark element. The more Dark element and Magic attack you have, the more damage you will do.

Explanation of skills: All magic line is good for crowd control in dungeons.
Moon Light Splitter: Since MoonLord is more of a Magic attack class, this skill needs to be at least level 11 so that you can get Moon Light Splitter EX. The English calculator isn’t up to date whereas the Korean one is.
Cyclone Slash: Great crowd control skill, and is also as powerful as the other magic skills.
Crescent Cleave: Awesome skill, big damage dealer. Plus, it’s affected by Dark element, which further increases its damage.
Half Moon Slash: A slowly animated skill, although very powerful. You can increase its speed with a motion acceleration +50% crest.
Great Wave: While it may seem this skill is not as good as infinity edge, if you’re focusing mostly on magic attack, this skill does massive damage.
Eclipse: Good skill, but does not benefit much from being higher than level 1.
Hemorrahage: Add as much as you want to this. At max level it reduces the enemies defense and magic defense by 42%, at level 5 35%. Great skill for bosses.
Most of the physical attacks are Dark element based.