Last Stand Chain Barding

Made of interlocking metal rings, chain mail includes a layer of quilted fabric worn underneath the mail to prevent chafing and to cushion the impact of blows.

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.

Chain barding provides a mount with an AC of 16, and reduces the mount's speed by 10 feet unless its Strength score is 13 or better. The mount makes Dexterity (Stealth) checks with disadvantage.