Librarian's Balance

Librarian's Balance changes the villager trading system so enchanted books are gated by progression. Librarians sell only low-level books at first, while higher-level books have to be upgraded at an anvil before the villager offers them. Players can buy copies of an enchantment book they already own through a librarian, and a lectern is used to set up the librarian's trades. Mending is turned into a treasure enchantment that can only be found in End Ancient Cities, so it requires exploration before a player can obtain it.

The mod is a datapack, so it is loaded through a datapack and is not a separate Java mod. It is built for survival worlds and multiplayer servers, where enchantment progression can otherwise arrive too quickly. Everything it changes can be toggled and configured with the libal:config function, which must be run by an operator. Server owners who want to alter the loot tables can do so without deleting the loot table folder inside the pack. The mod is distributed for Fabric, Forge, NeoForge and Quilt, and the latest build targets 1.21.11. It is a server-side mod, so the server requires it while clients may leave it out.