Hello everyone, this is my first mod, rarity was a problem for me since there are only 4 which is:

Common
Uncommon
Rare
Epic

Now the mod include (with version 1.0.6+ (1.20.1 only)) these rarity (obscure tooltip (3.0+ only) compatible):

Common
Uncommon
Rare
Epic
Unique
Legendary
Mythic
God

Be sure to enable the buildin resourcepack for obscure tooltips integration (1.20.1, v1.1.0+ only).

There is not any way to change it manually through config or json and custom name color don't change the fact it's still these above, so i created a mod which allow to change the rarity, the mod have taken another height using kubejs (1.20.1 only), adding custom rarity yourself (no more hardcoded) :)

https://github.com/TokyoSU/CustomRarityMod/wiki

in-game that will look like that (without other mods):

Recommanded mods:

Obscure Tooltips (hightly recommanded).

Compatible with LootBeams: Refork, ItemBorders or ItemOverlayBorder, all rarity will be used for the beams and borders correctly.

Incompatibility:

This mod is incompatible with Item Rarity Fix (and Legendary Tooltips if your using Obscure Tooltips) since it's doing the same "way" to change item color or rarity.

Thanks:

I want to also thank to this mod author poscard8 since i'm using the ItemStack mixin code for overriting minecraft rarity function (adapted to this mod use of course).

If you use it for a modpack, please credit me and poscard8 :)