You've attained the mastery of an acrobat. You gain the following benefits:

• Increase your Dexterity score by 1, to a maximum of 20.
• Cat Fall. When you fall 10 ft. or more, you can use your reaction to make a DC 10 Dexterity (Acrobatics) check. On a success, you can subtract the check's total from the distance you fell when calculating any damage you take from the fall.
• Wall Run. As a bonus action, you can attempt to run across a sheer surface. Make a DC 15 Dexterity (Acrobatics) check - on a success, you gain a climbing speed equal to your walking speed until the end of your next turn, and can move across vertical surfaces while leaving your hands free.