Blizzard Channel Divinity

You can use Channel Divinity to summon a sphere of raging snow and cold as a bonus action within 120ft of you. The sphere has a 30-foot radius, is difficult terrain, and creatures inside are considered lightly obscured, lasting for 1 minute or until you are incapacitated or die. Any creature who starts their turn in the sphere, or enters it's area must make a STR save against your spell save DC, taking 1d8 times your cleric level in cold damage on a success, or half as much on a failure.