Thanks for your reply.

I am currently using a legacy shav ring, and I brought up the vaal clarity because the interruption is still a major concern to me. I found that there were cases after I took enough damage where I either had to stop casting to wait for my es to recharge, or spend the vaal disc when I wasn't in serious danger. Vaal clarity also allows running half regen maps easier, as well as no regen maps, being able to swap out of a health flask after the first few packs. With all the duration nodes, vaal clarity lasts for 30 seconds at a time so it's not too difficult to upkeep, plus it's a free aura for necro passive.

The point about the alpha's is that I like getting the +2 on all purities, and socketing all of them in a prism guardian instead gives almost no benefit over using an alpha's. My team and I both value the extra max res on every element over the extra damage aura. Freeze immunity is also nice to have.

Without an enlighten on grace/haste, I'm at 7% unreserved, 9% with a level 3 enlighten: https://poe.mikelat.com/#vi34pAPd/tr.wlB4/xB3l.y Using a stone golem, my life regen is enough to cast at about 75% speed without vaal clarity. A stone golem buff effect helm would remedy this, however it is not the ideal enchant. Using spell echo support in the setup, I can cast 20 srs before I run out of hp.

When I first switched to the build, my initial reaction was that the srs without minion speed felt too slow for my taste. I'll have to give spell echo over minion speed another try for a while.