Chill of the North

Glacial ice shoots from the ground in a line 30 feet long and 5 feet wide that emanates from you in a direction you choose. Each creature in the line must make a Dexterity saving throw. A creature takes 3d8 cold damage on a failed save, or half as much damage on a successful one. The ground affected by the spell is now rough terrain for 1 minute.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d8 for each slot level above 2nd.