Frostbite

Casting Time: 1 action
Range: 60 ft.
Duration: Instantaneous
You cause a numbing frost to form on one
creature that you can see within range. The
target must make a Constitution saving throw.
On a failed save, the target takes 1d6 cold
damage, and it has disadvantage on the next
weapon attack roll it makes before the end of its
next turn.