PoE Added Chaos Damage, Cold builds

Looking for some discussion on this theorycraft and its potential as a league starter. PoB: For the most part, this is a fairly typical Poison Pathfinder build. In that sense, I think this (or any other Poison) build will do well at league start. Especially so with the new Mastery node for Poison that grants 300% increased damage on first application. I've also looked into some synergies for this build to grow into that I'd like to discuss. Lethe Shade Lethe Shade seems like a fairly mediocre node which gives a small upside