Disrupting Smite

5th-level evocation

Casting Time: 1 bonus action
Range: Self
Components: V
Duration: Concentration, up to 1 minute

The next time you hit an undead creature with a melee weapon attack during the spell’s duration, you weapon bursts with spiritual energy, and the attack deals an additional 5d6 radiant damage on a successful attack roll. If the target has 25 hit points or fewer after taking this damage, it must succeed on a Wisdom saving throw or be destroyed. On a successful saving throw, the creature becomes frightened of you until the end of your next turn.