Story Subclass
Bitten by a werewolf or cursed by a witch, now you are transforming into a monster. Because of your rage management ability, you know to a certain extent how to control your curse, the only thing you cannot control is transforming when enraged.
Level 3
What big hands you have.
As a Free Action, you can transform your hands to be animal claws and use them as weapons. They are not subject to disadvantage imposed by Rushed Attacks (see pg. 13 of the Core Rules), and their damage is 1d4+STR.
How hungry you are.
When attacking, you can expend a Fury Die to gain its value as temporary HP (it's not stackable)
Level 7
What strong limbs you have.
While Raging, you can climb as fast as you can walk. Also while raging and as an action, you can jump in a straight line up to your total movement + STR spaces without generating opportunity attacks
Level 11
What big lungs you have.
While Raging, expend all your Fury Dice to unleash a terrifying howl, All enemies within reach 6 get the Frightened condition until the end of your next turn.
Level 15
What grumbly your stomach is.
When killing an enemy, you can use one Fury Die to recover 1 Wound or heal half the damage done.