Chilling Gust

A blast of cold air erupts from your hands. Each creature in a 30-foot cone must make a Constitution saving throw. A creature takes 3d8 cold damage on a failed save, or half as much damage on a successful one. Creatures that fail the saving throw become chilled for one minute, or until succeeding on an additional saving throw at the end of each of their turns.

Chilled- Creatures lose any resistance to cold damage that they possess for the duration (immunity is unaffected) and have their movement speed reduced by half (to a minimum of 10 ft).