I've just augmented hikida's 57%, cause i felt like it, and for me, it turned out too be VERY good! (My honest opinion)
it had the following:

* 20% increased dmg by swordsman skills
* 18% chance too cause a spectral nova when it kills an enemy (as a bm, i mostly one shot monsters, so i take this mostly as a hit)
* 3 aura of power (Soon skill retrainer and i've got this at 10/10, so i'll be spending 3 xtra points now )

This was it, would like anyone's opinion about the augments.

yeah that is a nice augment for a skillspamming blademaster
what advice do you need?

in my opinion, you rolled some good mods