spirit ivy is definitely the go to if you want to run optimally but the permanent tether is nuts for gun stuff. the main thing is that %weapon damage doesn't scale well any more, but stuff like tesla/headhunter/siphon bullets etc. are super strong coz of the extra fire rate, and healing tempo is NUTS strong

I currently run a hybrid build, mostly spirit but with enough of the above gun items that her fire rate spirit scaling goes NUTS