Well, I’m ready to render my final verdict on this build, now that I’ve had 4 characters make it to 100 Ultimate Hardcore (two of them based on your builds… not that I’m stalking you or anything 
but I really like your UHC builds). I’m evaluating it from that Ultimate Hardcore perspective.
As reported, I would not take this build into deep SR - it’s too dependent on getting into the face of enemies, which with terrain effects or certain bosses, is too dangerous in deep SR - Grava is a problem, and Clarity of Purpose doesn’t last long enough, and energy drain vs Ravager means I wouldn’t try all the regular celestials either. But if I can postulate, that isn’t this build’s purpose. For deep SR, a finalized version of your Sabotinha is far more viable (tested by me to SR 33, with a relic change to Sanctuary). Where this build shines is that it is extremely accessible, and can do all of regular Ultimate Hardcore; I would strongly endorse this build for anyone doing their first entry into starting Hardcore, because it can essentially farm gear that subsequent characters can use as builds that can do deeper SR (for example, the afore-mentioned Sabotinha, or the variety of pet builds out there). For that purpose - as a fast-progressing and viable first entry into Hardcore - I’d give this build 9.5 out of 10. I haven’t seen anything better. Great guide again!