Last Stand Plate Barding

Plate consists of shaped, interlocking metal plates to cover the entire body. A suit of plate includes a visored helmet and thick layers of padding underneath the armor. Buckles and straps distribute the weight over the body.

You have a +1 bonus to AC while wearing this armor, which shimmers softly. If you die while wearing the armor, it is destroyed, and each celestial, fey, and fiend with 30 feet of you must succeed on a DC 15 Charisma saving throw or be banished to its home plane of existence, unless it is already there.

Barding is armor designed to protect an animal's head, neck, chest, and body.

Plate barding provides a mount with an AC of 18, and reduces the mount's speed by 10 feet unless its Strength score is 15 or better. The mount makes Dexterity (Stealth) checks with disadvantage.