Rogue optional abilities

At level 10 and every 3 levels thereafter, Rogues may select a special bonus feat from a list of 5 choices. Only the Skill Mastery feat can be chosen more than once. Crippling Strike- sneak attacks inflict 2 strength damage Improved Evasion- half damage even on a failed reflex save Slippery Mind- two saving throws against Will-based enchantments Skill Mastery- +1 on all skills Defensive Roll- A chance to reduce attack damage at low health