I think you need the Alpha Howl I.M. from Evangeline. Should be under Lungs.
Aside from that, I'm not sure. Best guess is to do something while fighting a werewolf and having the mentioned I.M.
Yeah, makes sense, thanks!
And I found that when you have the mutation there is an unknown chance that your PC will add a female werewolf to the pack if they sex them after the combat.
Now I have to find out what to do with the pack members. The mutation describes some sort of Pack Attack but no such option appeared to me during combat.



