Where was Zygarde during the other major cataclysmic world-ending events? Shouldn't he have made an appearance to stop Groudon and Kyogre or Eternatus?I mean he technically didn't even stop Xerneas and Yveltal but we can at least put that one down to XY not receiving a third version, but he was in Alola so he has a history of getting involved in other conflicts. Was he scared?