Wintertalon's Rapid Rend

A blistering wind envelopes you as your hand becomes that of a pale dragon's claws. You move at an unnatural speed directly towards a creature of your choice within range; this movement does not provoke attacks of opportunity. When you arrive, the target makes a Dexterity saving throw. The target takes 4d8 cold damage and 1d10 slashing damage on a failure, or half as much on a success. 

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