Sylverthorn's Skull Twist

You can blind a foe by twisting their skull inside their face. Choose one creature that you can see within range to make a Constitution saving throw. If it fails, the target takes 2d10 force damage and is blinded for the duration. If it succeeds the target takes half as much damage and is not blinded. At the end of each of its turns, the target can make a Constitution saving throw. On a success, the spell ends.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, you can target one additional creature.