Anything Armor (5e Equipment)
From D&D Wiki
Armor (any), rare (requires attunement)
Anything armor is a suit of armor that, on command, can transmute into cloth, leather, studded leather, hide, scale mail, ring mail, chain mail, splint or plate armor.
It has 6 charges. Each time it transmutes, you can expend one or more charges to duplicate the properties of any other magic armor that you name. A common armor requires 1 charge, uncommon requires 2 charges, and rare requires 3 charges. The properties last for 24 hours, then the anything armor reverts to a normal suit of armor of that type.
Anything armor cannot form a specific type of armor more than once. If it reverts to a normal suit of armor and has no charges left, it loses all magical properties and is no longer considered to be anything armor.