Arcane Riposte

As a reaction to being hit by a melee attack, you brandish the weapon used in the spell’s casting and make a melee attack with it against one creature within 5 feet of you as a swift and precise counterstrike. On a hit, the target suffers the weapon attack’s normal effects and then an additional 2d8 force damage, and its movement speed is reduced by half until the start of your next turn.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d8 for each slot level above 2nd.