I am here after discussing with
@Chariot190 off-site.
I was initially skeptical due to stuff in the Time Erase just blatantly not being erased, but Diavolo himself does say that "
everything" disappears disappears during the erasure, which does make me think that the timeline gets erased entirely during the Time Erase, at least during those 10 seconds.
With that being said, to make stuff more coherent, I'd also make Diavolo's Time Erase something like this:
Diavolo's world should indeed be BDE 1 as it lacks space-time entirely, hence lacking dimensions. If you check
the ability:
Beyond-Dimensional Existence is the state of existing beyond dimensions. In the majority of cases, this will be referring to characters who are timeless and spaceless. That is to say: A "beyond-dimensional" character does not take up any volume whatsoever, nor does it occupy a position in spacetime, nor does its continued existence trace a path through it. They are, as such, much different from 0-dimensional characters, who simply have no extension in any dimension and still occupy spatial location.
Actions happening in erased time disappear, proving that they're not part of the space-time continuum at all.
Type 1: Characters who lack spatiotemporal features entirely, while not actually being superior to them in nature. They are simply ontologically different from any dimensional construct, but can ultimately still be comparable to dimension-bound entities in terms of raw power. Due to being aspatial and atemporal, they are obviously immune to conventional Spatial Manipulation and Time Manipulation, and since they are not part of the spacetime continuum, they usually have Acausality (Type 1)
Diavolo is not making the timeline a
Low 1-A construct (as that's BDE 2, which is actual superior to dimensions as a whole), but simply making it nonexistent, hence Type 1 as it's not superior to said dimensions. The name of the ability is misleading, yes, but blame DT not me lol.
