While I believe it works regardless if it’s perfectly pronounced, her way works to tap into his current. But initially I was pronouncing it more like Hebrew words. So I’ve pronounced it like this in the past reh-neek tah-saa oo-beh-rah-kaa bee-ah-saa ee-car Loo-cih-fer
Priestess Akelta, heard in this video, pronounces enns with an (American) English accent. I think a Latin pronunciation like the one you’ve typed is more suitable for such chants.
Actually, spirits have told me that you don’t have to say it 100% correctly for it to work. As for the reason for that…I haven’t given it much thought.
I do it the same way. Something like the German or the Scottish “ch”. It is more natural to me and also if a simple “k” sound were intended, there were no need for adding an “h”. The next option, “tch” sound, doesn’t rings well.