Thamior's Arcane Smite

The next time you hit a creature with a weapon attack before this spell ends, the weapon bursts with arcane force as you strike. The attack deals an extra 2d6 force damage to the target. Additionally, if the target is a creature, it must succeed on a Strength saving throw or be pushed 10 feet away from you and knocked prone.

At Higher Levels. When 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.