Cirrus' Macabre Letting

You target one creature that you can see within range as their insides churn and you force a wound to open. The target must make a Wisdom saving throw or take 3d8 slashing damage and become frightened of you. On a success, the target takes half as much damage and isn't frightened. The frightened target can repeat the saving throw at the end of each of its turns, ending the spell early on a success.