Armor of Invulnerability

SRD 5.1 (2014)

Armor of Invulnerability

Armor (plate), legendary (requires attunement)

You have resistance to nonmagical damage while you wear this armor. Additionally, you can use an action to make yourself immune to nonmagical damage for 10 minutes or until you are no longer wearing the armor. Once this special action is used, it can’t be used again until the next dawn.

SRD 5.2.1 (2024)

Armor of Invulnerability

Armor (Plate Armor), Legendary (Requires Attunement)

You have Resistance to Bludgeoning, Piercing, and Slashing damage while you wear this armor.

Metal Shell. You can take a Magic action to give yourself Immunity to Bludgeoning, Piercing, and Slashing damage for 10 minutes or until you are no longer wearing the armor. Once this property is used, it can’t be used again until the next dawn.