The invisible flame is refining the whole plane into soldiers. So the plane is already falling apart before the dragons enter it.
This is why the Observers pleaded with the Mechanical Emperor not to destroy the plane. But it is as he said, the amount of damage the plane will take from him is dependent on how far the dragons are going to push him.
The freshly produced robots rose to the sky to join the defense of the plane. Meanwhile, the Phoenixes appeared in the main plane quickly. It was as if they had bypassed the divine plane somehow.
It didn't surprise the Mechanical Emperor that the Phoenixes passed through the divine plane without any delay or any notice from the gods.
He only gnashed his nonexistent teeth and swore, "You gods had all better be dead or I will kill you myself."
Meanwhile, the Shadow Lurker finally decided to make her move on Legion-5.
I've started a new book titled DESTINY GAMES. Please check it