The Reflect Ring (Wall Ring in earlier versions) enables this ability, and can be equipped by anyone. It does not grant stat bonuses. It can be found in Istory Falls, can be won (rarely) from Reflect Knight and Parthenope, and is a common win from Leviathan. In addition, it is a common steal from Lemure, Fury, and Carbuncle, and is a rare steal from Reflect Mage, Calofisteri, and Barrier. The enemy Carbuncle has Auto-Reflect as well.