This small amulet is made up of leather or twine strap holding a small gem sealed to wood on top and stone on bottom.

This item has 4 charges which regain 1d4 charges at dawn. You do not benefit from the magical properties of this item while wearing any armor (Non metallic shields are acceptable) however the negative properties still apply. While attuned to this item you may as an action and for 1 charge have to stone magically grant you the benefits of the spell Barkskin and Stoneskin for one hour. however upon taking damage while the effect is active you must make a con saving throw of 10 or have the effect end. 

If you try to activate the ability after all 4 charges are used you must make a con saving throw dc 15 for the effect to work if you fail the saving throw you are magically petrified for 1 hour, while petrified you retain your ac and hp and are considered incapacitated during the effect if you are brought to 0 hp in this form you shatter into pieces and die. 

The stone has a AC of 20 and hp of 50, if the stone is destroyed while you are attuned to it you must make a con saving throw dc 20, on a failed save take 100(10d10+45) peircing dam as jagged branches eject from your body as the stone is destroyed.

Curse: If the amulet is removed from your person at any time you become petrified to stone indefinitely and suffer the same effects if used more than 4 charges. This cannot be cured except by a remove curse spell which ends the attunement as well. The curse cannot be removed from the amulet.

Notes: Resistance: Bludgeoning, Piercing, and Slashing from Nonmagical Attacks, Set: Armor Class, druid, Cursed, Jewelry