Chilling Grip

Frigid air whorls about your hand. Make a melee spell attack against the target. On a hit, it takes 3d6 cold damage, and its speed is reduced by 20 feet until the start of your next turn.

At higher levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d6 for each slot level above 2nd.