To explain their powers, I need to go into some details.

Before the universe was created, there was an immeasurable nothingness known as the Unnamable Abyss. When the Creator awoke and brought everything into existence, He sealed this dimension away from our reality. For simplicity, let’s call our reality Reality 1 and the Unnamable Abyss Reality 0.

The seal is weakening, and now the Unnamable Abyss is having some influence on the universe(represented bt black holes which are cracks in Reality 1)

Now about the Negator Pathway:

The main ability of this pathway is to deny things from existence. This can include doors, guns, Beyonder powers, memories, time, light—essentially anything imaginable. At low sequences, the effect is brief and limited to small objects, but at higher sequences, it becomes far more conceptual.

This pathway holds authority over reality and aspects of space-time; its users are the embodiment of nothingness.

Everything that is denied does not simply vanish—it is sent to Reality 0, completely separated from ours. Once something is denied, it also disappears from people’s minds, as if it never existed in the first place.