Shard of evil

Shard of Evil
Aura strong transmutation; CL 20th
Slot none; Weight 12 lbs.
Description
This +5 flaming wounding unholy club was once the weapon of a powerful archdevil who they say controlled an entire layer of Hell. When he attempted to defy the Prince of Darkness, he was overthrown and banished into some cold and remote prison at the edge of the multiverse. Still bearing some infernal vestige of the forgotten fiend's power, the shard grants the bearer a +10 bonus on Diplomacy and Intimidate checks and the power to use scorching ray three times per day.
Any nonevil creature who touches the shard of evil is given a choice: become lawful evil immediately, or die. Those who choose death are instantly slain (Fortitude DC 30 negates). Those who choose to become lawful evil change alignment immediately (no saving throw) and are subject to a demand spell (Will DC 25) requiring that they find the Summon and free him from his forgotten prison—presumably thereafter he will press them into service for his plans of revenge against those who imprisoned him.
Destruction
The Shard of Evil is destroyed when a paladin of 19th level or higher touches it and chooses death rather than becoming lawful evil. This sacrifice still kills the paladin, though she can be raised from the dead.