Gravity Repulsion

4th-level evocation

Casting Time: 1 action
Range: Self (20-foot-radius sphere)
Components: V, S
Duration: Concentration, up to 1 minute
Class: Sorcerer, Warlock, Wizard

You emit waves of gravitational energy, distorting the trajectories of incoming projectiles and making movement difficult. For the duration, ranged weapon attacks made against you have disadvantage. In addition, the area within 20 feet of you is difficult terrain for creatures of your choice that you can see.

Gravity Pulse. When you cast this spell and as a bonus action on your subsequent turns, you can create a gravity pulse, forcing one Huge or smaller creature of your choice that you can see within 20 feet of you to make a Strength saving throw. On a failure, the creature is pushed 10 feet in a direction of your choice and falls prone, taking 3d6 force damage.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the radius of the difficult terrain increases by 5 feet, and gravity pulse’s damage and range increase by 1d6 and 5 feet, respectively, for each slot level above 4th.

Source: Heliana's Guide to Monster Hunting