Artifactory

Artifactory introduces a highly configurable D&D-style attunement system where players can bond with weapons, armor, and gear. As your attunement level grows, so does the power of your gear—unlocking new bonuses and effects.

Website - Make sure to check out the website to get all of the information you could need.

JSON / Datapack Builder  - Just configure the items, download the datapack, and drop it into the datapacks folder. Or use it to build jsons and download them to add to existing datapacks. Makes creating configurations for the mod very easy.

Modpack makers can also restrict powerful items until they're attuned, and with a limited number of attunement slots, players must make meaningful choices about which items to commit to. Fully configurable and built to fit seamlessly into any modpack, Artifactory adds depth, progression, and balance to your game.

Below are the default datapack attunement levels for the Diamond Sword.

Level 1: Adds Invulnerable (won't despawn and can't be hurt by environmental effects) as well as the benefits of the attunement bond.

Level 2: Adds 25% attack speed and Unbreakable.

Level 3: Adds 40% more attack speed and makes it Soulbound, so if you die it will travel with you through death and respawn with you on your body.

                        Level 1                                                    Level 2                                                    Level 3