You brandish the weapon used in the spell’s casting and make a melee attack with it against one creature within 5 feet of you. On a hit, the target suffers the attack’s normal effects, and the target is surrounded by cold winds until the start of your next turn. If the target makes an opportunity attack before then, it immediately takes 1d8 cold damage , and the spell ends.

This spell’s damage increases when you reach higher levels. At 5th level, the melee attack deals an extra 1d8 cold damage to the target, and the cold damage the target takes for making an opportunity attack increases to 2d8. Both damage rolls increase by 1d8 at 11th level and 17th level.