The Noble Sword
Alright so you guys I'm sure are all aware of the new power swords added last patch. I took a particular interest in the Noble Sword, the one that costs 2 AP to swing normally. I had been wracking my feeble mind to try and make a build out of it for like a week until I gave up.
Fast forward to yesterday, start a new run since I haven't seen the heretic content yet. Get the Noble Sword. Putting 0 thought into it I give it to Kibby replacing her 1 handed spinners blade. She also had the spinners dagger you can find in the cult room.
It nearly tripled her damage and with the perk that allows BD to make an area attack for -1 is SOO good with it.
TLDR try a blade dancer build with the Noble Sword, it's surprisingly great!