Billowing Strike

The next time you hit a creature with a weapon attack before this spell ends, the target takes an extra 2d8 bludgeoning damage as a powerful gust slams into it. It must succeed on a Strength saving throw or be pushed 15 feet straight away from you and be knocked prone. A Large or larger creature has advantage on this saving throw.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, for each slot level above 2nd, the damage increases by 1d8 (to a maximum of 5d8) and a target that fails the save is pushed 5 feet further away from you (to a maximum of 30 feet).