Has anyone played around with Melted Heart of Selig and Rogue?

I got the drop and have been playing around with it. It feels good, but not sure about how to generate more resource in some areas. All my ring slots have bursting venom / bladedancer, but I think I may need to drop Doombringer for a dagger with bladedancer and stick umbral on.

Mostly auto attacking keeps the resource up, but I think it needs a little bit of help.