Hydaelyn

Unleash a chilling roar that echoes through the air, affecting all enemies within a 10-foot radius. Those caught in the area must make a Dexterity saving throw or take 4d10 cold damage and have their movement halved for one round; on a successful save, they take half damage and are not hindered. When cast at 4th level or higher, increase the damage by 1d10 for every spell level above 3rd.