Conqueror's Gaze

Your eyes widen, as you let out your will in form of a dreadful wave of energy, forcing every creature of your choice within a 60 ft radius of you to make a wisdom saving throw, on a failed throw, any creature with a Challenge Rating of 8 or less becomes incapacitated, and any creatures with a higher Challenge Rating become frightened for 1 minute. 

on the end of their turn, a creature can repeat the wisdom saving throw, removing the effects on a successful throw. 

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the CR increases by 2 for each slot level above 5th.