The Demon Scepter is a Unique castellan equipment item. It is equipped in the "Look" slot of the castellan "Equipment" overview. It transforms the appearance of the castle into a sinister demon fortress. The effect lasts 7 days. Though terrifying, it is actually quite useless, as the appearance makes no difference in resource production or soldier recruitment. Selling the Demon Scepter would provide coins, a much better alternative to a nice paint job.