Slash A: Update copied summary from Threnody's post.
no rigor, next skill or roll will launch w/out any delay after the 3rd attack.
damage-wise, almost nothing around 10-20 additional to your min/max damage,
the only good thing is the SP-usage, so you can replace your normal attack with it.
the 3rd slash, rests somewhere between no-change from lvl5 slash,
its "ever-so-slightly" faster than the normal one.