Valerus's arcane Blade

You evoke a arcane blade in your free hand. The blade is the shape you desire (reach properties are not given to the weapon crated by the spell) , and it lasts for the duration. If you let go of the blade, it disappears, but you can evoke the blade again as a bonus action.

You can use your action to make a melee spell attack with the blade. On a hit, the target takes 3d6 force damage.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 for every two slot levels above 2nd.