I'm sure you'll manage to come up with something awesome.
That being said though, we probably need to start thinking of potential themes. Perhaps "powering up", where it is based on abilities like rage, frenzy, ki frenzy, lycanthrope forms, etc. Basically a state that you stay in for limited time, but which makes you stronger.
I personally prefer Cursed as a theme- either a curse that you can tap into for power, breaking curses that others make, and so on, could be interesting.