Cleave

You draw a slashing weapon and send out a wave of force. Make a ranged spell attack against the target. On a hit, the target takes 1d8 force damage. A target hit by this attack must take a strength saving throw. On a failed save the target is knocked prone. On a successful save the target isnt knocked prone

This spell's damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).