Elemental Strike

You can call upon an element's energy to your fist for a powerful strike, choose one of the following elements: acid, cold, fire, lightning, thunder. Make a melee spell attack against the target. On a hit, the target takes 1d10 of the chosen element's damage.

The spell's damage increases by 1d10 when you reach 5th level (2d10), 11th level (3d10), and 17th level (4d10).