Amethyst Scale

Amethyst dragon scale inscribed with a runic dragon's eye and inlaid with gold filigree. Hung on a chain as a necklace. 

Wielder gains advantage on Concentration checks.

Once per day for one minute, the scale can bind with and amplify the wielder's psionic abilities. All psychic and force damage dice do their maximum damage amount for the duration. During this duration, the wielder can change the damage type of one spell at a level equal to or lower than their proficiency bonus to psychic or force damage. 

Notes: Wielder must have psionic abilities granted as a class or race feature.