Clamber

Feat (level 4). +1 STR or DEX. You scramble up a built wall up to 10 ft high (double movement) with no stairs or ladder. A drop of 20 ft or less deals you no damage and doesn't leave you Prone, whether you step off or are shoved. Reaction, on its own: when you're knocked Prone, you roll with it — move 5 ft without provoking opportunity attacks and stand up