Psionics Crystal

Wondrous item, rare, requires attunement
Chipped off the hide of a gemstone dragon, this crystal grants you psionic abilities depending on its size.
It recharges upon completing a long rest. If you ever use the last charge, it turns into an inert precious stone.
12 charges, recharges 1d6, spells: Amplify, Distance, Flay, Forget, Sympathy p.196 S&F