It is my first time to see this happens. http://pastats.nanodesu.info/chart?gameId=382761 The black commander is unable to be attacked by any weapon. And he can fly between planets. I think he is riding an Astraeus, but the game doesn't display that. And I have tried to bomb him with 5 nukes, it didn't work. Finally, we use Ragnarok to destroy all the planet including ours to finish it. After the game finished, I try to review the replay. But I find I can't even see his commander.