This plugin is first my plugin. So, it will not work completely.

This plugin allows you to add durability to the player head!
When you receive damage, your durability value decreases, and if you repair it, your durability value will be restored when you gain experience points.

Command:
/armorskull:
..create <durability>: create "armor skull".
..damage (clear|default|add <damage cause>): change damage cause.
..displayLore (default|number|japanese|bar): change durability lore.
..durability <durability>: change max durability.
..enchant <enchantment>: enchant.
..help: help.
..info: show information of handed armor skull.
..modify (clear|<attribute> <amount> <scalar>): add attribute.
..remove: clear "armor skull" from handed armor skull.
..rename (clear|<name>): change name.
..repair <number>: fix durability by number.
..setting: change setting of armor skull by clicking on chat.
/armorskullreload: reload config.

By the Google translation.