Cyclone Strike

The next time you hit a creature with a melee weapon attack before the spell ends, the spell creates a small vortex around the target. In addition to the normal effects of the attack, the target and each creature other than you within 5 feet of the target must make a Dexterity saving throw, taking 1d10 slashing damage on a failed save, or half as much damage on a successful one.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d10 for each slot level above 1st  (to a maximum of 6d10).