At each even level, you choose a new at-will Trick. You may choose maneuvers from this class feature or any of your other class features.
At each odd level, you choose a new class feature. Some class features allow you to choose one or more ranked Trick; you may choose ranked Tricks from this class feature or any of your other class features.
You may make a new Stealth check to attempt to hide, ignoring the normal -5 penalty to your Stealth roll for attacking while hidden, and you may make this check even if you only have partial concealment. For each creature that you were hidden from at the beginning of the attack, if your new Stealth check result is greater than that creature's Spot defense, you remain hidden to that creature, and it does not know which space the attack came from.