Frostbite

Duration: Instantaneous.
You cause numbing frost to form on a creature
you can see within range. On a failed Con save,
the target takes 1d6 cold damage, and has
disadvantage on the next weapon attack roll it
makes before the end of its next turn.
--- At Higher Levels:{dash}{dash}{dash}
This spell's damage increases by 1d6
when you reach levels 5, 11, and 17.