Drag

You rotate your finger in a counter-clockwise motion at a creature within range, and slow it’s movement through time. The target must make a Charisma saving throw. On a failed save, the target’s speed is reduced by 10ft until the start of your next turn. Allied creatures can choose to fail the saving throw. The speed decrease, increases at 5th level (20ft), 11th level (30ft), and 17th level (40ft).