Aulys's Ebbon Tide

A blast of force erupts from the palm of your hand. Each creature within a 25-foot cone must make a Dexterity saving throw. A creature takes 6d10 Force damage and is pushed back 20 feet and knocked prone on a failed save, or half as much on a successful one and is not knocked prone.

At higher levels: When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d10 and is pushed back 10 more feet for each slot level above 4th.