From DDO wiki
|Item Type||Clothing / Helm|
|Race Absolutely Excluded||None|
|Location||Frame Work, End chest(s)|
|Description||A crown said to have been originally crafted for the hag queen Sora Teraza. It bestows its wearer with great wisdom, and the ability to see things as they really are.|
The spell damage increase from the set bonus is a Equipment bonus, and does not stack with any other spell damage increase effect from items.