PoE Pestilent Strike, Yorunokage builds

I whipped this together rather randomly in 20 minutes and it looks nice Is it worth putting extra time into it to make it an actual build? Any ideas on how to easly build extra defences? Rough explanation Basically the build uses Varunastra to pick a shitton of super powerful nodes and masteries, everything else is rather standard for poison builds. Dual weild doens't get that much more dps and the """build""" seriously lack defences so i went for a shield instead