KitKat's Item Rubric

A Japanese friend of mine proposed the following after Volume 14 (the sidestory kappa) came out. This is basically a clean subdivision to make things easier. Given the Gauntlet being Middle Class, it it's possibly relevant given the levels of items in the New World. Basically think of each category as being 12 to 13 levels approximately required for the item.
"If that's true any Level 100 person could make Divine gear but why is it so rare???"
Well I don't have a clear answer, but given what I know of some MMOs, even maxed out crafters require rare drops to make items. Given we do know the Staff of Ainz Ooal Gown's extensive grinding needed to make.... that's not farfetched why so few people had even just one. Or why Nazarick coudlnt' give every NPC one. Being a crafter certainly seemed to make you have a hard time too since those classes were not suited for combat.

Mages are in a considerably small field. People that can make strong magic weapons have no combat ability [sentou nouryoku] at all. A person dedicated and amazing at both would be called a monster

[Blog]
low class - Min Level 1
middle class - Max Level 25
high class - Min Level 26
top class - Max Level 50
legacy - Min Level 51
relic class - Max Level 75
legendary class - Min Level 76
divine class - Max Level 100

Item Class	Conjectured Minimum Class Level requirement	Minimum Magic Tier User Required (7 Levels Per Tier)
Low	1	Tier 1
Middle	12/13	Tier 2
High	26	Tier 4
Top	38/39	Tier 6
Legacy	51	Tier 8
Relic	63/64	Tier9
Legendary	75	Tier 10
Divine	87/88	Tier 10

Needless to say, most nations would be hard pressed to have a dedicated crafter that is even able to make High tier items since they would have to be pure crafters to even get that high. Even Heroes wont' theoretically reach the point to make Top class items, and you would almost assuredly need an Outlier, who are absurdly rare to begin with. Legacy items are beyond the reach of all but dragons and a few Night Liches, and we only know Godkin or True DLs could likely have the level required to even potentially make Relics.
I quite like this breakdown because of the fact like I mentioned, all the pleb items of this world would be fit into the first four classes, the generic ass named classes. Anything actually worth taking note of would be the named categories.

Among those items, Ainz discovered a sword. It might well be the most magical item out of everything here. "Umu …going by levels, it would be around level 50, then?" It was long enough to be considered a longsword, and it was intricately decorated. He was not sure if this was made in YGGDRASIL. But if it was an item of this world, then its magical power would beggar belief. Ainz felt the body of the sword. It was smooth and even.

[V11]
So instead of say calling this a Level 50 weapon, or an absurdly strong New World weapon, we can potentially just call it a Legacy class item, or Tier 8 required item. Data Levels are more convenient since we all know what a Level is, but there's a qualitative split between the pleb tiers (low, middle, high, top) and the actually Where in the World did something this strong come from tier (legacy, relic, legendary, Divine).
Let's take that Pearl of Death. Levle 40 was the WN level. Using this metric, that would make it a Top class item that required a Tier 6 creator pretty much.
Guild class - These can break the limits of Divine class items and hold data closer to World Items. Breakable. (V1/WN)
Artifact class - Unbreakable items (ARC) of all the following regular categories (V1; example Divine Artifacts, V13 Boss drops). Cannot be augmented (Manga 2). Cash Shop items may fall in this category since they can't be augmented either (V1).
World class Items - The items with the largest data capacity (Manga 2). Unbreakable (WN/V10).
*All breakable items from YGGDRASIL have a caveat - lower data capacity weapons cannot break hem normally. (ARC)
Given the theoretical level values required, at best a New World Tier Magic user will likely only ever make at best Top class magic items, based on data detection values. Given there is little knowledge of materials that are good, that may not even be possible barring say Dragon Lord bones or something... maybe all dragon skin still follows YGGDRASIL rules at least?
It's not impossible...
This is funny because all the fancy named magic items would thus be limited to some Crafter Godkin or a modern Dragon Lord who went full crafting. Night Liches might be fucked though... Ainz doesn't seem to have a crafting ability (barring Create Undead kappa).
True Dragon Lords are an exception because if they gave a Stick the Level + 5 enchantment... it sort of is just impossible to categorize from the system we understand of tiers and shit, since it may not even need good materials to craft (though given level caps etc it probably does have some relation to data capacity).