Samael himself didn't fully understand how he'd neutralised the formation of the hall, but had Uriel been present to watch him work, he would've found it fascinating.
It had gone through three steps; the first step formed the anchor, the second step terraformed the hall and the third deployed the mirage.
But why? What did each step do?
The first, very simply, formed a foundation of control. It gave Samael nearly absolute control over the hall, its space, its flows of energies and laws.
Though, evidently, he had no control over such forces. At his scale, the most he'd be able to do was sense coming attacks within the bounds of the anchor.
But then came the second step, which built atop the foundation of the anchor to transform the hall into a heaven of his own path and affinity.
Not only did it deepen the control he had over the hall, but it also eroded all previously established pathways of energy in the hall.
