Each fusion requires a large amount of energy.
And it is not only energy that is being absorbed but also all kinds of intangible concepts and Laws that governs the stability of reality around Azief body was absorbed by him
The blue energy also seems to supply power toward Azief.
The fabric of reality around Azief also seems to be distorted extremely as the space segmented like it was cut and each segmented block of space seems to be separated by layers of other dimensions causing it to create instability on the surrounding space.
Rifts of space multiplied by the thousands.
The orbits and the gravitational force around Azief body all seems to be altered
All of this phenomenon happening is not because of the pressure of Azief body. This probably have something more to do with the Gate
As his blue aura seems to cover the surrounding area around him, the star systems around him were all affected.