Power and Cost

The mod removes the Too Expensive limit and the Prior Work penalty that the vanilla anvil applies. Each item's power level is built from two parts: the material it is made of, graded from wood through stone, iron, diamond and netherite, and the power that each enchantment adds according to its type and level. An item with a higher total draws a steeper XP bill for enchanting or combining and recovers less durability per repair.

Repairing with materials always costs one material plus one XP level, regardless of tier, so simple repairs stay simple. Heavily enchanted gear restores less durability per repair, but endgame gear can still be repaired and uses more materials. New items that carry only a few enchantments cost just a few levels, and costs climb as the item gains strength. Because the cost stays under a theoretical maximum of around 50 levels, the outcome of combining items can be worked out in advance.

Power and Cost is a Fabric mod that runs on the client and the server, so both sides need it. It requires Fabric API and is released under CC0 1.0 Universal, which places the mod in the public domain; the source code is open source. Files exist for 1.21.10 and 1.21.11, with 1.1.0 for 1.21.11 as the latest build.