I have read in the description of the Something Wicked expansion for A Touch of Evil on BoardGameGeek that the expansion contains additional rules that include "expanded challenge for cooperative play," but I don't see the rules posted in the files section. We've had a fairly easy time at beating the base game co-operatively and so I'm curious what changes in a co-op game with this expansion. A different shadow track? Bonuses for the Villain? More frequent mystery cards?