Mace Leveler

MaceLeveler is a Spigot/Paper plugin that makes the Mace weapon feel truly legendary. The first time you pick up a Mace, you'll be asked to choose your enchant path — Density or Breach — and from then on, every player kill with that Mace levels it up!
Enchant Paths:

Density — Levels 1 through 5. At level 4 you unlock Wind Burst I, and at max level you get Wind Burst II, Fire Aspect II, Unbreaking III and Mending.
Breach — Levels 1 through 4. At level 3 you unlock Wind Burst I, and at max level you get Wind Burst II, Fire Aspect II, Unbreaking III and Mending.

Fully Configurable:
Edit config.yml directly in your server's file manager to customize which enchants are added at each level, set max levels, and toggle whether mob kills count or only player kills.
Features:

Each Mace is tracked individually using NBT data
Works even if you drop or trade the Mace
Data saves automatically on server restart
Supports Spigot and Paper 1.21.11