[Enrei]

I'm not sure which skills to empower and I don't want to make the mistake once again. Things I'm thinking of empowering are:
Slice and Dice. (Damage)
Mock. (Cool Down)
Devastate. (Duration)

Should I empower the Bone Slicer with Damage or Buff Time?
Fatal Slash with Buff Increase? >_>;;
Argh, so confusing.. @_@;