• You and/or players (depending on how you have the config.yml configured) can now add either very specific items, (CustomModelData supported) or very specific rules that an item must have.
• Rules are a defining characteristic about the item. From a specific name, having a specific line of the lore be a specific string, to specifying the PersistentDataContainer, allowing the support of any and all other plugins that alter item data. ItemsAdder, Oraxen, & yes, even Nexo.