You blast a wave of freezing cold at a point you can see within range. Each creature in a 20 foot radius centered on that point must make a constitution saving throw. On a failed save, the creature takes 4d8 cold damage. Moreover, their movement speed is halved and it can’t take a reaction until the end of its next turn. If a creature fails the saving throw by 5 or more, their movement speed becomes 0 instead until the end of its next turn. On a successful save, the target takes half as much damage and suffers none of the spell’s other effects.

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 3rd.