Anna's Bone Armor

When you cast this spell, you touch an evil aligned creature, creating a suit of armor made of bones that covers their body. The armor provides a +2 bonus to the creature's AC and lasts for the duration of the spell. Additionally, the armor grants the creature resistance to bludgeoning, piercing and slashing damage.

Once the spell has been cast, the bones that make up the armor are enchanted and are able to move and adjust to the wearer's movements, providing extra protection, and the armor can be dispelled and dismissed at will by the wearer.