Can I improve my Storm/Regen?

[MirrorDarkly]

Looking for feedback on a build I'm working towards that is similar to one I used the test server and enjoyed.  I'd love to be able to squeeze perma-hasten out of it and have better slow resistance without sacrificing to much else, but I'm not sure if that is possible.

 

The only incarnate included is Vigor Core Paragon, which I used to solve my end issues as well as allow the lightning in Storm Cell and Cat 5 to hit higher level targets after I noticed them missing AVs frequently (since it only has 1.15 base accuracy and don't benefit from set bonuses and  most other external sources of accuracy).  The healing bonus also helps some of my secondary powers which is.... not bad.

Sentinel (Storm Blast - Regeneration).mbd

 

Edited May 19, 2023 by MirrorDarkly
Correction on how useful the healing bonus is.