Empowering Smite

The next time you hit a creature with a melee weapon attack during this spell's duration, your weapon intensifies in power, and the attack deals an extra 3d6 force damage to the target. The spell does not end here. You have been empowered, until you lose concentration, you double your proficiency bonus to your attack, saving throws, and spell DC.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage increases by 3d6 for each slot level above 4th.