Permotio Pressure (5e Feat)
From D&D Wiki
Prerequisites: Level 5, Strength 15 & Wisdom 15
Every creature has latent untapped power within them. This power when released explodes with a violent wave of force followed by an immense gravity-like pressure. Once per long rest you may release your pressure in a 30 ft radius as a action. Those within the radius must make a DC 16 Dexterity saving throw or take 1d8 force damage and be knocked prone. On a successful save the target takes half damage and instead of being prone is considered restrained. You can hold any targets knocked prone down with your pressure for a number of rounds equal to your Constitution Modifier.
The pressures damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).