Anulus Spiritus

The Anulus Spiritus is also known as the Ring of the Guardian.

Description
A golden ring with a large ruby, engraved with Old Elvish runes.

Qualities
While wearing this ring, you are immune to magic that allows other creatures to read your thoughts, determine your location, determine whether you are lying, know your alignment, or know your creature type. Creatures can telepathically communicate with you only if you allow it.

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 ring. Once this special action is used, it can't be used again until the next dawn.

If you wearing the ring and fail a saving throw against an enchantment spell that targets only you, you can turn your failed save into a successful one. You can't use this property of the ring again until the next dawn. If you succeed on a save against an enchantment spell that targets only you, with or without the ring's intervention, you can turn the spell back on its caster as if you had cast the spell.

You can use an action to cause the ring to become invisible until you use another action to make it visible, until you remove the ring, or until you die.

Lore
The Anulus Spiritus was created by the Elvish Emperor's artisans for himself. It allowed him to inspire troops on the battlefield more effectively, as well as perhaps playing a key role in his duel with the Fire Drake Ahenobarbus. When the Emperor fell in battle, the ring was lost to history.