You conjure giant spectral wings. The wings begin to beat affecting creatures around you. Each creature within 15 feet of you must succeed a Dexterity saving throw. Creatures take 2d6 + your spellcasting ability multiplier bludgeoning damage and are knocked prone on a failed save. On a successful save, a creature takes half as much damage and isn’t knocked prone.

You can then fly up to half of your speed. 

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