Initiation Time: 1 action
Range: 60 feet
Duration: Concentration, up to 1 minute
A 5-foot-diameter sphere of air appears in an unoccupied space of your choice within range and lasts for the duration. Any creature that ends its turn within 5 feet of the sphere must make a Dexterity saving throw. On a failed save, a creature takes 2d10 slashing damage, or half as much damage on a successful one.
As a bonus action on your turn, you can move the sphere up to 30 feet within range. If you ram the sphere into a creature, that creature must make the saving throw against the sphere's damage, and the sphere stops moving this turn.
At Higher Levels. When you initiate this form at a higher level, the damage increases by 1d10 for each level above 3rd.