Deluge

You conjure a gushing beam of water in a 5-foot wide, 60-foot wide line. Each creature in the line has to make a Dexterity saving throw. On a failed save, they take 14 (4d6) cold damage and are pushed back 10 feet. On a success, they take half the damage and are not pushed back.

You can create another beam of water as an action on each of your subsequent turns until the spell ends.

At higher levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 for each slot level above 5nd.