Gem of Inner Will

From the Clutch of Kings quest introduced in the On Bended Knee event.

Gem of Inner Will
Value: 0 10 Burden Units
This gem can be placed into a piece of Noble Armor. If so, it will imbue the armor with a very potent Self Spell that will affect the wearer.. Combine with a piece of Noble armor to infuse the armor with the Inner Will spell. This item cannot be sold.