You can shift your physiology without fully changing your shape, giving you an advantage in battle.
Prerequisite: Beast Shape class feature.
You reshape your body, gaining one of the following benefits. You choose the benefit when you enter the style, and while in the style you can change the benefit as a swift action.
Brutal Attack: Choose one of your natural attacks. You gain a +1 bonus on damage rolls with that attack when using this style, plus an additional +1 for every feat you have that lists Shapeshifter Style as a prerequisite (maximum +3).
Steady Grip: You gain a climb speed of 10 feet.
Tensed Sinews: You gain a +1 bonus on Reflex saving throws and a +5 enhancement bonus to your base speed.
Toughened Hide: You gain a +1 enhancement bonus to your existing natural armor bonus.