Belittling Smite

The next time you hit a creature wit a melee weapon attack during the spell's duration, you strike at a creature's ego, bypassing their physical defenses.  The attack deals an additional 2d6 psychic damage, and it uses the target's Charisma rather than their AC to determine if the attack hits or misses.

At Higher Levels.  If you cast this spell using a spell slot of 3rd level or higher, the extra damage increases by 1d6 for each slot level above 2nd.