Ok so, this whole "but True Form Arceus just upscales from the Avatar so all its hax is just 4D" is honestly just stupid and ignores a lot of context.
I'll speak like this because people tend to over-simplify and forget things about Arceus.
"Arceus doesn't have any Low 1-C feat itself besides its existence, so its hax extend to only its 4D multiverse."
This assumes that Arceus just exists in a plane beyond the multiverse and has created just said 4D multiverse, in a similar way
Mashymre did. Issue here is that Arceus itself, unlike Mashymre, didn't just create the multiverse and perceives it as insignificant, but exists
AS THE WHOLE PLANE WHERE THE MULTIVERSE IS SUCH. Arceus literally exists as a Low 1-C structure where the Multiverse is just a mere fraction of it, and gets the stuff from said realm. This isn't a thing like Mashymre who can use Fairy Tail verse powers just there, as is just the result of his writing, but something like
Truth of The Universe, who embodies the whole Real World and can use haxes this powerful because it is the whole cosmology, affecting whatever being is in it like
The Player or
Dark Dragon. Like any single character that embodies a comsology can use its hax that strong as they are said cosmology, why Arceus shouldn't? It has created its own realm like Creation Trio has created the multiverse, and like they scale to such in hax, True Form Arceus should, given that they can manipulate and sustain the multiverse in the same way Arceus does with its own Low 1-C realm, given that Arceus
IS THE WHOLE POKEMON REALITY ITSELF.
"It still has nothing besides upscaling from its avatars."
It's the opposite, given the avatars receive their powers to a limited scale as they are just a piece of the true form. Just like their AP is just 4D as they don't scale to the True Form's AP given the lack of feats on such level, because, again, said their AP is not the full thing, the hax should too for the same reason. This is not
Infinite Zamasu who becomes 4D, but all his hax remain 3D because he has nothing suggesting his powers besides AP got upgraded, this is the opposite as
IS THE AVATARS WHO GOT THEIR STUFF FROM THE TRUE FORM ON A LIMITED WAY. Like their AP/Hax is limited to 2-A as is not comparable to the True Form in feats, True Form should upscale to 5D in both AP and Hax, given is the avatars who get a limited version of the True Form's power, and not the other way around. Because again, Arceus is not like Mashymre. Is like ToTU here, and has 5D feats of creation/sustenance like Creation Trio does with the 2-A multiverse.
I hope this nonsense ends here ngl.
