This ring is a simple golden ring with elegant Sylvan script across the band. The sylvan reads "One ring to rule them all, one ring to find them, one ring to bring them all and in the darkness Bind them.". This lettering will fade away if the ring isn't worn by the user, and only fire can reveal it.

While attuned to this ring you gain the ability to sense the presence of any magic ring within 50ft of you.
While attuned to this ring you gain the ability to hold any magic ring and after a short 10 minute concentration you will instantly know what the ring does, as if casting the Identify spell.
While attuned to this ring you can cast Dominate Person on anyone wearing a magical ring. The target has disadvantage on the Save with a DC 18.
While attuned to this ring you can cast Greater Invisibility on yourself at will.
While attuned to this ring you are immune to Charmed, Possession, & you can't be put to sleep by magical means.
While attuned to this ring your lifespan is increased by 200 years, and you require half the normal amount of food and water to survive.

Curse: This item is cursed. Attuning to it curses you until you are targeted by a remove curse spell or similar magic. As long as you are cursed once a month you will have to make a Wisdom Saving throw (DC 12),  on a fail you will take 1 point of Wisdom, Constitution, Strength, or Dexterity damage. Every time you cast Greater Invisibility on yourself you will roll a Wisdom Save (DC 12) on a failure you will take 1 point of exhaustion. When you die you will come back as a Death Knight.

Notes: Immunity: Charmed, being with the ability to cast 1 spell.