Combat Opportunist (Ex): Rogues are adept at seizing opportunities in combat. You can use your total rogue level in place of your base attack bonus derived from rogue levels for the following purposes:
*When determining your number of immediate actions in combat (Chapter 7)
*For purposes of qualifying for and determining the effects of [Combat] feats (Chapter 5).
Trapfinding: You are an expert at finding, disarming, and activating traps, and gain the following abilities: You gain a passive Disable Device or Spellcraft check (Chapter 4), as appropriate, to notice any trap, secret door, hidden mechanical gadget, or spell effect within 5 ft. per 2 class levels you possess.
You take no penalties for finding or disabling traps in darkness or while blinded. In addition, you can apply your Dexterity modifier, rather than your Intelligence modifier, to Disable Device checks if