Thornlash

You conjure a cluster of spectral thorns and hurl them toward a creature within range. Make a ranged spell attack against the target. The target must make a Constitution saving throw. On a failed save, the target takes 1d6 piercing damage as the thorns whip and embed themselves into its flesh. The thorns then crumble into green motes and vanish.

A hit target has disadvantage on the next weapon attack roll it makes before the end of its next turn.