Indigon and eldrich battery interaction

Hi,

This might be a noob question, but does Indigon work if you would spend energy shield instead of mana when you cast? Or do you have to use mana only to trigger the helmet effect?

Would appreciate some enlightenment.

Thanks in advance!

No, I just tested this. Kind of makes sense, since you are not spending mana for your skill.

Maybe still potentially useful if it is only paying for part of the mana cost.

p.s. I know this is an old thread but I still found this with google so I am gonna answer here for other people, Indigon is 30 div now so not easy to test.