Sword Coast Adventurer's Guide
Conjuration Cantrip (Artificer, Sorcerer, Warlock, Wizard)
Casting Time: Action
Range: Self
Components: V
Duration: Instantaneous
You create a momentary circle of spectral blades that sweep around you. All other creatures within 5 feet of you must succeed on a Dexterity saving throw or take 1d6 force damage.
This spell’s damage increases by 1d6 when you reach 5th level (2d6), 11th level (3d6), and 17th level (4d6).