Cold Claws

Thin, sharp blades of frigid ice grow from your fingertips. Make a melee spell attack against one creature within 5 feet of you. On a hit, the target takes 1d4 slashing damage plus 1d6 cold damage. After you make the attack, the ice instantly shatters or melts away.

The spell’s cold damage increases by 1d6 when you reach 5th level (2d6), 11th level (3d6), and 17th level (4d6).