Cold Brew Storm

A torrent of dark viscous liquid envelopes a 20ft by 40ft cylinder creating a hurricane like structure. Inside are large jagged pieces of ice. A creature inside the radius of the spell must, at the start of their turns for the spells duration, make a successful Dexterity saving throw against the casters spell save DC or is dealt 5d4 bludgeoning damage.

You can also expend a spell slot of your choice to cast this spell.