Xanathar's Guide to Everything

Cause Fear

1-level Necromancy

You awaken the sense of mortality in one creature you can see within range.  A construct or undead is immune to the effect.  The target must succeed on a Wisdom Saving throw or become frightened of you until the spell ends.  Teh frightened target can repeat the Saving throw at the end of each of its turns, ending the effect on a success.
At higher levels: At Higher Levels. When you cast the spell using a spell slot of 2nd level of higher, you can target one additional creature for each slot level above 1st. The creatures must be within 30 feet of each other when you target them.