Blow of Notus

You brandish the melee weapon used in the spell’s casting and make a melee attack with it against one creature within the weapon's reach. For this attack, you can choose to use your spell casting ability modifier for the attack and damage rolls instead of Strength or Dexterity. Wreathing your weapon in scorching desert winds, on a hit the target suffers 2d8 piercing damage in addition to the attack's normal effects.

Regardless of whether you hit or miss each creature within a 15ft line of you in the direction of the original target must make a Strength Saving throw, on a failed save a creature takes 2d8 fire damage. On a successful save, a creature takes half damage.

At higher Levels: When you cast this spell using a spell slot of 4th level or higher, both the initial damage and the save damage increases by 1d8 for each slot level above 3rd.