How to upgrade rings?

[гном(крупнокалиберный)]

I can improve the weapon, a hat and a mask in the forge, but I can not put into forge my ring (shadow lvl 1). How do I increase the rarity of rings?

[Medi-Wolf]

Higher Shadow Level rings can only be obtained through breaking the Resplendent (Rainbow) boxes. Even then those are up to chance.

[Nervura]

So aren't there shadow level 3 and 4 rings yet? To this day all I ever got is up to shadow level 2 on rainbow boxes.

[Tru]

My friend has a lv 3 shadow and it gives him 1800 physical.

[Cyrlan]

as of now you can't upgrade rings. I think in the further future they will add this feature.

[Kalroahr]

I got a Shadow lvl4 ring. So..yeah they exist in those boxes but i had to make tons and tons of boxes ....

[Rasky]

yeah i got shadow lvl 4 ring ive not had another soo i keep >:D