Spook (5e Spell)
From D&D Wiki
|Casting time:||1 action|
|Duration:||Concentration, up to 1 minute|
You play upon the natural fears of an enemy. You target one creature in range. That creature perceives you as something inimical. The target must succeed in a Wisdom saving throw or become frightened for the duration. At the end of each of their turns they can make a Wisdom saving throw. On a successful save, the spell ends.