Brain Freeze

One creature of your choice that you can see within range must succeed on a Constitution saving throw or take 3d8 psychic damage and 3d8 cold damage, and have disadvantage on saving throws to maintain concentration on spells for the next minute. The creatures may repeat the saving throw at the end of each of their turns. On a successful saving throw, the target takes half as much damage and has disadvantage on saving throws to maintain concentration on spells until the end of its next turn.

At higher levels. When cast at a higher level, the cold or psychic damage increases by 1d8 for each level above 4th.