On paper, the Magic Empress was supporting the Council, granting its members full access to the cities of the Empire and to the databases of the local authorities. Yet she wasn't doing it out of the goodness of her heart, but for her own survival.
Milea was aware that in case the Kingdom fell the Empire would be the next.
By buying time for the Royals, she was actually buying time for herself. The Empress had put Belius under constant siege not only to expand her borders, but also to force the Mad Queen to reveal her best cards.
The more desperate both the Griffons were, the more of their respective secrets they had to unveil in order to remain in the game. Milea didn't care whether her opponent would be Meron Griffon or Thrud Griffon.
Once the war was over, she planned to exploit the weakened state of the winner to conquer the Kingdom. To do that, she was studying the best strategies of both sides and training her armies to counter them.
