Cold Feet

Choose a creature that you can see within range. Cold winds begin to swirl around the targets legs, increasing in intensity as time goes on. At the end of each of its turns for the duration, if it hasn’t moved 20 feet that turn, its lower body are encased in ice. It takes 1d10 cold damage and is restrained.

A creature that is restrained can use its action to make a Strength check against your spell save DC. If it succeeds, the ice shatters and it is no longer restrained.