The creature has mastered the art of slipping away and taking cover. Once per turn, at a moment of its choosing, the NPC may use an extra movement action to move. If an effect or creature paralyzes, slows, or restrains its movement, it may attempt an Intelligence or Dexterity check (its choice), DC 10, to break free once per turn. It gains a +5 bonus to Defense when it has fewer than [CR x 5] hit points remaining.