Nightshade's Reach build?

Would it really be for hit and run, given the petrify effect the weapon has?

I agree with sfbistimg though, transmuted Blade Arc + Shadow Strike for single target seems like a good way to go, as Nightfall doesn’t seem useful enough in this build to justify all the points in the mastery just to get to it.

…On the other hand, that Witch Hunter also seems okay, but I’m not sure it’d have enough AoE…

How would the Spellbreaker build work, though?

See, I say this because I have a DW Pierce Blademaster, a DW Cold Spellbreaker and a pet-based Occultist so I have plenty of room to try and get a single working build for the sword. Not even thinking about Ultimate yet, as my Blademaster just hit Blood Grove on Elite and the other two are getting to Homestead on Normal Veteran still.