As a child, you spent a lot of time running the interconnected rooftops your home city. As a result, you are particularly adept at climbing, jumping, and avoiding falls.
Benefit: You gain a +2 bonus on Climb and Acrobatics check, and may take 10 on Climb checks even when distracted. If you fall, you automatically reduce the damage taken by the fall by one die, as if you had fallen 10 less feet. This reduction in damage stacks with the Acrobatics check to further reduce falling damage.
Curse of the Crimson Throne Player’s Guide