The next time you hit with a melee weapon attack during this spell’s duration, your attack deals an extra 1d6 psychic dam age. Additionally, if the target is a creature, it must make a Wisdom saving throw or be frightened of you until the spell ends. As an action, the creature can make a Wisdom check against your spell save DC to steel its resolve and end this spell.

This is the spell "Wrathful Smite" from the Player's Handbook, but with a different name so that the logic of linking things on dndbeyond doesn't conflict with the version locked behind the paywall.