Medallion of Demonic Disruption

Equipment Neck40000 gpWeight 0

Meant to be worn around the neck, this medallion made of braided, blue-tinged white gold hangs from a silver chain. When a creature with the demon subtype casts a spell within 50 feet of the wearer, it must attempt a concentration check with a DC equal to 15 + double the spell's level. If the check fails, the spell has no effect.