Ring of the Blinding Eye

Seeing. This ring holds 6 charges and regains 1d6 charges at midnight. Whenever you, or a creature you can see within 60ft. of you has been Blinded within the last minute, you can use your reaction to speak a command word and expend 2 charges. The creature then instantly regains their vision.
  Unseeing. You may use an action to expend 3 charges by pointing to a creature you can see within 120ft. of you. The creature has to make a Wisdom saving throw. The DC of this saving throw is equal to your Passive Perception. On a failed save, they become Cursed for 8 hours. While they are cursed, you are Invisible to that creature for the duration. This effect ends if you attack the target or cast a spell on it. It also ends if you attack or cast a spell while within 60ft. of the target.