After I enter the portal at the werewolf shrine and once I turn into a werewolf i can no longer use light and heavy attacks. Block and pounce work, but I don't have roar like I did the very first time I did this quest.
When you complete the quests... you get a new skill line. YOu have to unlock and spend points in the skill line in order to get access to abilities you had in the "tuturial" WW quest.