Chilling Arrow

You weave evocation magic into your arrow. The creature hit by the arrow takes an extra 1d6 cold damage. The target must also succeed on a Constitution saving throw, or it has disadvantage on the next weapon attack roll it makes before the end of its next turn.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d6 for each two spell levels above 1st level