Amulet of Deployable Crystalline Armor

While you wear this amulet you can activate a crystalline full body armor your whole body is covered in pink crystals. +5 to AC, 30 temporary HP, Immunity to slashing, poison, cold, lighting damage. Vulnerability to thunder and force. resistance to fire damage .the user can only use the armor for 1 min. disadvantage on DEX Saving throws and stealth checks. After a short rest it will have 3 charges.

Notes: Disadvantage: Dexterity Saving Throws, Immunity: Slashing, Immunity: Lightning, Immunity: Poison, Immunity: Cold, Vulnerability: Thunder, Vulnerability: Force, Resistance: Fire, Bonus: Armor Class, Creation, Buff