In Dies?
In KKK,
Spoiler:
Having fought me (Hajun) for uncounted aeons, he has become the second strongest thing in existence other than myself. This is having held off my influence that has consumed and eradicated the rest of multiverse other than the universe that KKK occurs in. Also Sprach Zarathustra is now known as the Eternal Crimson Hell and, if it weren't for me, truly every single countless universe in existence would be frozen in stasis forever when Ren unleashes it. Having leveled up to such insane heights, Ren's guillotine blade is now easily capable of sundering universes. And he can rain hundreds of millions of them down in a single instant on a helpless enemy, again, due to the timestop. On top of such massive speed and temporal dfference, his Legion's abilities are massively amped as well.
He can use the Volsung Saga of Machina, IE, anyone who sees his face, dies and is erased from existence. This applies to concepts as well. Or he can use Shirou's Malignant Tumor Apoptosis, IE everything that has supernatural powers is nerfed down to the level of an ordinary human. Or Kai's poison, or Beatrice and Kei's lightning and flames or Anna's shadows.
Now imagine all those abilities used at the same level as his guilotine and in the timestop they are all unleashed in a continuous barrage against an opponent that cannot even move or perceive it.
It's useless even if time and such don't apply to the opponent as it is more like Ren's desire to stop everything. The opponent must be of a higher level in scope and scale than Ren in order to overcome his will
Atziluth users are usually conceptual level powers. Gudou gods can easily screw with concepts and reality with their battle powers.
Hadou gods are all at least universal level reality warpers. The highest level ones, IE, Kemono-dono and above (Meaning the Dies Irae Atziluth users and myself from KKK) are all multiverse level.
Furthermore, when a Hadou god claims the Throne, the entire multiverse, that has been subsumed and incorporated into the Throne system now forms the body of that Throne god. Thus, the current Throne god determines the Law forced on the multiverse