Mage/Dark Wizard Help Spell Build Improvements

I would like to apologize in advance for my lack of build crafting skill, here it is, anything you would improve without removing the helmet? go!

 

Seems pretty solid; I'd definitely keep in mind that you'll want to reach 129 Intelligence to get 2-cost meteors, which significantly lowers your mana consumption. The main things to improve about that build is the mana sustain, and for that reason, I'd personally go with this build:
https://wynndata.tk/s/beoxkp
It's a bit harder to get- requiring A Hunter's Calling as well as 4 full completions of LI, but it's worth it as the items are quite good for other builds as well.

 

For twa I would probably do this https://wynndata.tk/s/1v5msg although this is kinda carried by virtuoso and would get nerfed next update so you can use momentum instead if you're looking for a long term build.
Ewf is way better for nepta in my opinion though https://wynndata.tk/s/2otyf3 so you should use that if you decide to lift the requirement to have boreal.