Fist of Unbroken Air

Fist of Unbroken Air. Melee Spell Attack: +4 to hit, reach 5., one target. Hit: 22 (4d10) bludgeoning damage, and the target must make a DC 12 Strength saving throw. On a failed save, the target is pushed 20 feet away and knocked prone. On a successful save, it is pushed 10 feet and isn't knocked prone.