Diadem of Doom (Magic Circlet)

It is unclear whether this grim item was constructed by evil Dargonesti or by the Sea Witch. In either case, the diadem is a nasty piece of work (worse still, there are at least three of them inexistence, though there may be six). The diadem is also known as the helm of horror and the cadaver comb. Its normal form is that of a simple coronet made of coral, with tiny carvings of sea creatures on it.
The diadem's first function is its ability to shapechange into any sort of article meant to be worn on the head. Its most popular forms, besides the diadem shape, are those of a jeweled comb or an elaborately designed, open face helmet. The diadem can change shape seven times a day. The fact that it comes in several different forms makes it harder to identify by sight.
When the diadem is first worn, a user gets a tingling sensation, as well as a feeling of happiness that he or she has put on the diadem. A victim refuses to part with the object regardless of friends' pleas, offers of great wealth, or any other incentives.
As time passes, a wearer's actions and thoughts become increasingly evil. On the middle night of Nuitari's next High Sanction, the wearer's alignment changes to the evil version of the current alignment (a lawful good character becomes lawful evil).
If the wearer is already evil, there are no ill effects until the week of Nuitari's next High Sanction. For the entire seven days, a wearer takes every opportunity to commit senseless acts of evil and succumbs to lycanthropy (determine the type of werebeast randomly).
The other powers of the diadem include a +3 bonus to saving throws and Armor Class and 15% magic resistance. For spell purposes, the diadem functions as a 16th-level caster. The diadem also gives the wearer a +4 reaction bonus when dealing with evil-aligned creatures and shuks.
When worn, the diadem enables the user to cast the following spells, each once per day-animate dead, bestow curse, dispel magic, fear, flame strike, know alignment, meld into stone, and speak with dead.
Obviously, no self-respecting Dargonesti would wear this diadem. Its purpose seems to be to create evil Dargonesti, presumably to follow Sagarassi.
Destroying a diadem is not easy. Only striking it with a holy weapon, having a dispel evil spell cast upon it by a good priest of at least 20th level, or surrendering it to nine dragon turtles on the middle night of Nuitari's Low Sanction can destroy one of these accursed objects. 
Category:Encyclopedia Magica Magic Items
Category:Magic Items
Category:Magic Circlets