Does leveling up a relic increase its damage or spirit gain?
I have looked through all the documentation I can find on relics, and I can't find an answer for this question. As far as I can tell from the docs and in-game info, the *only* purpose of leveling up a relic is to increase the maximum level of the rune slots.
This makes a big difference in determining whether I want to level certain relics, because I have plenty of relics where the runes are not particularly useful, but it would be worth it to level them up if it made them hit harder or gain spirit faster.
Does anybody know the answer to this question? Or where I could find the answer?