Haunted Blade

Spell Lists: Bard, Sorcerer, Warlock, and Wizard
Evocation cantrip
Casting Time: 1 action
Range: Self
Components: S, M (a melee weapon worth at least 1 sp)
Duration: Instantaneous
You brandish the weapon used in the spell's casting and make a melee attack with it against one creature within the weapon's reach of you. On a hit, the target suffers the weapon attack's normal effects, and then becomes haunted by an otherworldly force until your next turn ends. If the target makes a saving throw before then, they subtract 1d4 from the total, and the spell ends. If the saving throw is made against the shaken or frightened condition, they subtract 2d4 instead.

The melee attack you make as part of casting this spell deals additional damage when you reach certain levels. At 5th level, the melee attack deals an extra 1d8 psychic damage. This increases by an additional 1d8 at 11th level (2d8) and 17th level (3d8).