I think few builds were posted with this weapon. One was Blade Arc Blademaster. Infiltrator is possible too. For offense you can count on Rimetongue set. Defensive option is Shattered realm armor. Also is possible to spam Chillspikes from component.
Its funny this a leading topic right now. I just came back to the game after a solid hiatus, cracked open Grim Tools, and fiddled around until I found a build to aim for now that I’m back into it. That would of course be Nadaan’s Reach Infiltrator. I don’t want to share it just yet, because I am leveling and gearing the character to match my expectations right now. Hopefully I find everything I need within the next week or two. If it’s any good you’ll be the first to know.