Call Armor

You are instantly clad in your suit of armor. The armor remains on until you dismiss it as a bonus action. The armor may be removed normally instead, but must be donned normally before it can be dismissed per the spell. Any damage or changes that are done to the armor remain unless repaired before dismissal. 

You must designate a suit of amor by casting this spell while touching the desired piece. The armor cannot be being worn at the time of this casting, nor can the armor be attuned to anyone else for the spell to take hold. If the armor being designated requires attunement, such attunement must be completed before casting this spell, then the amor must be removed and the spell cast. Casting the spell for the first time to designate the suit of armor leaves the caster's mark within the suit of armor. To change the designation to a new suit of armor requires the removal of the mark by recasting of the original spell to dismiss the designation. The spell may then be cast again on the new target armor to re-create the mark. 

A suit of armor marked by this spell can be called upon by use of this spell at any point after it is designated. There are no limitations on distance, physical or planar, to the summon so long as the mark remains within the armor.