Provide a detailed and clear description of feature or change that you want to offer.

Being able to change the bonus added by the Enigmatic Amulet.
There are many ways that this could be done, but here's a few I have in mind for the most balanced experience.

Making the item have no bonus originally, only gaining one once right-clicked, opening a GUI with buttons to select a bonus, each button having a vague/cryptic sentence that describes each bonus. Potentially randomized button location and multiple sentence options chosen at random to make it harder for returning players to memorize what bonus goes to what sentence.

Combining the amulet plus a dragon egg (signifying a begining of a life/origin of great power) and a rare item corresponding to the various bonuses.

Examples:
Netherite Sword/Etherium Sworm: Attack Damage
Turtle Helmet/Trident/Conduit: Swim Speed
Rabbit Foot/Elytra: Sprint Speed
Totem of Undying/Enchanted Golden Apple: Lifesteal

An OP exclusive command:
"/enigmaticlegacy amulet set [playername] [bonustype]"
Or something similar as I don't know how commands fully work haha.

Describe why you want this. If there's a reason.

Being able to customize something that normally requires a fresh world or advanced coding knowledge to change would be helpful for modpack devs, server owners, or people who want to roleplay.