Compress Magnitude

Choose a target within range. You cause intense gravitational force to press on them from every angle with crushing force. The target must succeed a Strength saving throw or take 4d8 force damage, as well as reducing the target's speed by 20 feet.

As a bonus action on each round you may inflict 4d8 force damage and reduce the target's speed by 10 feet. 

At higher Levels: When you cast this spell using a spell slot of 4th level or higher, the damage is increased by 1d8 and the target is slowed by an additional 10 feet.