So I was looking through korean meta builds TOP 100 http://tos.nexon.com/rank/characterrank.aspx
and the two top builds for swordsman are
15º S3>Hop3>Dragoon>lancer
16º S3>Cata3>Dragoon>Lancer
19º S3>Cata3>Dragoon
can someone explain why lancer is being picked?