as an action, you leap 30 feet into the air and swiftly dive into a space within 80 feet and within line of sight, if a creature is in that space, they must make a dc (10 + the difference In you and it's weight class) strength or dex save, if they succeed, they take no damage and are pushed back 10 feet, if they fail, they are pushed back 10 feet and they take 1d10 piercing damage and they are knocked prone.