Pure high slash proccing build
If you don't want to use Smite mods replace with Condition Overload

This build will easily handle any Steelpath enemies, to take it further combine with Roar and Viral procs (Primer/Panzer/etc.) for much higher slash procs.

I personally prefer Shimmering Blight stance, Twirling Spire has a forced slash proc on it's neutral attack but the stance also just knocks enemies all over the place and just kinda sucks to play with in my opinion. Also Shimmering Blight does have a forced slash proc on it's Block+Move attack.

According to the wiki Boreal's Contempt is bugged/miswritten and only increases status effects damage by 30% instead of 60% but with testing I still think this is the best mod for it's slot over Condition Overload. So basically this is good and one day might get even better.