The title speaks for itself. But I want to give more details. [Evolving Items] would be a unique tier of item, rarer than a legendary item, but more common than a mythic. And like their name implies, Evolving Items can be upgraded over time and obtain better stats and IDs. An Evolving Item will start off with mediocre IDs, not much better than a Unique Item of the same level, however, with each stage of their growth, they become stronger and more comparative to a Legendary Item. In addition to growing stronger, they may also have a different lore and model once upgraded, for cosmetic purposes. These items would look something like this. Spoiler: Evolving Item Evolving Items require experience to evolve, and will do so by leeching off your experience with an ID called "XP Drain". Some of these Evolving Items will have lower XP Drain, making it less of a hassle for you to evolve, but at the cost of requiring you to grind more to level your Evolving Item, and others will have higher XP Drain, so it will be easier to grow your weapon but less easy to level yourself up. The XP Drain will stop when the item has gained enough experience to reach the next level, or is already fully levelled up. Before you can evolve an item, you have to fulfill a certain set of requirements. For example, an Evolving Item may require Soul Points and certain Refined Materials or Ingredients in addition to having sufficient experience, this would make Ingredients more valuable, as currently most people just dispose of them or sell them to the blacksmith, not even worth keeping in the bank. Once this is done, the item is then brought to the item identifier, together with all the items required to upgrade it. When the item identifier sees that you have brought him an Evolving Item with all the necessary requirements (in your inventory) to evolve it, he will evolve your item (rather than re-identifying it) for you for a hefty fee (think identifying a couple of legendary items). There are of course a few issues with this suggestion: Because they are rarer than legendaries, most players would only obtain a few unless they go out of their way to get one (loot running), meaning some might not even hear of this feature due to its rarity. Of course, it won't be as outrageous to obtain as Mythics are, but it is still a possibility nonetheless. Grind. In addition to draining your experience, an Evolving Item will also (probably) require some ingredients to upgrade, and the identifier will also demand emeralds too. The idea of requiring refined materials to upgrade your gear would sound pretty repugnant to most players, as the crafting system is already big enough of a grind. Adding a whole new tier of items means adding new mechanics (item identifier evolving, item has stats that can change, a new type of ID), as well as items within the item tier. If they could change lore and model based on their evolution stage/level, that means every item individually would automatically require more effort put into them, you could say that adding one Evolving Item requires thrice as much effort as a Mythic (?) or maybe only as much as a Set item (again, (?) because idk what kind of work goes into these things) I got the original idea from some Chinese Animation (Quanzhi Gaoshou).