You gain a +1 class bonus to your Reflex defense, or a +2 class bonus to your Reflex defense if you already received a class bonus to Reflex.
You gain a class bonus to maximum hit points equal to your level, or twice your level if you already received a class bonus to hit points.
If you are not wearing heavy armor or a shield, and moved at least 1 pace since the beginning of your last turn, your Reflex and Armor defenses vs. enemies which do not have advantage against you are equal to 15 + your Acrobatics check modifier.
If the triggering effect did not succeed at an attack roll, you can make an Acrobaticssaving throw vs. a DC of 15. If you succeed, you do not take the damage or suffer any other effect from the attack.
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.