Air Cushion

You blast the ground below you with air that softens your fall. When you fall from a height of 30 feet or lower, you avoid taking any damage from that fall and land on your feet. If you fall from a height greater than 50 feet, you only avoid taking any damage from the first 30 feet of falling. 

The maximum height of the fall increases to 60 feet when you reach 5th level, 120 feet at 11th level, and 200 feet at 17th level.