'Soul of Shattered Stars, Essence of Casting Brilliance'
Legendary Ring.
It's one level higher than legendary equipment.
In Eteliria, there are only three levels of equipment with such a category—Legend, Pseudo-Divine Artifact, and Divine Artifact. Besides that, even if it's of legendary quality, the category of the equipment will only display its original category.
For example, the dagger he made for Elisa, although it's of legendary quality, the equipment category is still a Magic Guided Conductor—not a legendary dagger. But Legend, Pseudo-Divine Artifact, and Divine Artifact are different. If he made a Divine Artifact dagger, it would be displayed as a Divine Artifact dagger—not a Magic Guided Conductor.
And the attributes of this ring are quite formidable, though there is only a simple statement: Calculative Power enhances Magic Power Output.