BewitchmentZ

This compatibility addon to the LevelZ mod adds level locks for some of Bewitchment's weapons and armour.

Unsurprisingly, you will need both LevelZ and Bewitchment to use this datapack/mod.

Feel free to modify the datapack to your liking by tweaking unlock values.

Also check out Better Combat Bewitchment Compatibility to integrate the Bewitchment mod with Better Combat.