This plugin only works on 1.21+ versions, previous versions might not work. Mojang has completely rewrite the whole enchantment system so all plugins relate to enchantment won't work on 1.21+ unless developers write a new version. I won't provide backport support because there is a almost existed great substitute.

Plugin version number 1.21.R3 means this plugin works from NMS version 1_21_R0 to 1_21_R3.

Drag it and put in plugins folder, this plugin will complete all its work at server startup, no any config or command needed. To remove this plugin you need to reboot server.

If you are interested in its principle, please move to https://www.spigotmc.org/threads/ma...record-field-final-field.664578/#post-4782895.