Didn't realize shades ran with such high nano initiatives/in full agg sorry. Nor have the nano capabilities to land it reliably in the first place.
If you triple wielding you can get 160hps from the base proc just with normals, if it fires on specials you can get above than even just double wielding.
add in the nemesis nano heals for 10 seconds every 2 minutes you can heal a good 6k of your hp if you hit em.
All without having to cast constantly but instead be doing what a shade does best, stabbing people.