Sword Burst

You create a momentary circle of spectral
blades that sweep around you.
Each creature within range, other than you,
must succeed on a Dexterity saving throw
or take 1d6 force damage.
At higher level
Damage increases by 1d6 when you reach
5th level (2d6), 11th level (3d6), and
17th level (4d6).