All the NV Zoacks have the opposites. Subterra and Haos were originally released as NVs. So they were the first to have opposites.One thing that really bugs me about Darkus traps, they all have the same attributes. It's always any combination of Aquos, Ventus, or Subterra. I saw that the Darkus Epsilon had Pyrus on it, so that's a plus, but I wish there were more.