Juice of the Frightening Eye

Fear Eyes. An eyeball bobs in the green liquid of this potion. It vanishes when the potion is opened.   When you drink this potion you have advantage on saving throws against being Frightened for the next 10 minutes. During this time, you can use an action to shoot a magical ray from your eyes at a creature within 120ft. of you that you can see. The creature has to make a Wisdom saving throw (DC 16). On a failed save they become Frightened of you for as long as you are under the influence of the potion. The creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. You can use this feature once, only while you are under the influence of the potion.