This one, is seriously just a random lore item generator. Mobs, dungeons, and the like all have a chance of having a unique weapon, tool, armor, or block as loot.
A named sword with powerful enchantments.
A magical axe that speeds up how fast leaves decay, and how fast you mine wood.
An enchanted bow that has a different color enchantment
A block that mobs treat like a normal block, even though it isn't solid, and can be moved through effortlessly.
A book with an actual story in it.
A named potion that could be unique, or have duplicates.
Stuff like that. I take ALOT of insperation from the lore system on a server called "Massive Craft", as it is basically what I am asking for here. However, on Massive craft, all of the items have been created by a staff member, and while this is something I would be content with as well, (if there were boatloads of them,) I feel like it would be less work if we just had a computer generate them within certain guidelines. Duplicate items would be just fine.