Tenser Swipe

You cause a massive spectral blade to appear in your hand and swipe outwards in a massive arc of a 15 ft cone in front of you. Make a melee spell attack against each creature of your choice in a 15 ft. Cone, dealing 4d6 damage on hit

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d6 for each slot level above 2nd.