Temporal Stutter

You manipulate the gravitational forces around you to set a trap for any enemy creature foolish enough to approach. When you cast this spell as a reaction, choose one creature that moved within 30ft of you.

The targeted creature must make a Strength saving throw. On a failed save, the creature's movement speed becomes 0, and it is restrained until the beginning of it's next turn. 

At higher levels: when you cast this spell using a spell slot of 3rd level or higher, the range increases by 10 feet for each slot level above 2nd.