If you need a sword that has its own scarcity level as in the mmorpg game, then this is add-on what you're looking for!

MMORPG SWORDS

This addon contains many swords which have their own rarity, and they cannot be destroyed (unbreakable). if you are a fan of the mmorpg game then you will be familiar with the words Uncommon, Common, Rare, Legendary and Mystic. Curious? Look at the picture on the media on the side

Note: All wapon in this add-on cannot be made using crafting tables (uncraftable) and also cannot be obtained in survival mode, I suggested to make a weapons shop or something and then create a command block system to get this weapon, or you can also create special events such as killing the boss and then the boss drops one of the weapons in this add-on