WoW Upgrades - The Item Upgrader
Upgrades will give you a boost to certain stats. Each upgrade increases item level by 3. A random substat is also added to each upgrade.
The more modernized gear generally has a higher trade value, unless it has inherently low requirements (like the FB sorc's shield) or very high stat variance (like the eth titan weapons). The latter are less valuable from upgrading due to the requirement to roll to get a perfect version.
Recycle Points
The item upgrader lets players upgrade their gear by offering the currency to an NPC. Upgrades can be applied to any kind of armor or weapon. The item used to upgrade the item will be consumed and can't be used again. Upgrades can be applied to Enchantments.
The upgrader is located in all major cities and can be accessed anytime to upgrade your gear. To ensure that your equipment is up-to-date it is recommended you visit the upgrader every few weeks.

The cost of upgrades will depend on the current item level of the gear being upgraded but they will always be cheaper than buying new equipment from other sources. For example upgrading a Benthic chest to 385 levels will cost 20 recycle points while buying a similar item from a different player will cost 105.
Valorstones
Upgrades are functional items that can be used to level up weapons tools, armor, and other accessories. Players can purchase them from item upgraders NPCs for various currencies. They can also find them on random treasure lists. Once purchased, an upgrade can be used on any weapon, tool, or armor. button, which displays a preview of the item at its next upgrade level in the event that the player has enough materials.
Upgrade costs vary depending on the slot of the item and the current level of the item. For example weapons cost more than gloves, bracers or bracers. Each upgrade costs 15 Flightstones plus a specific number of crests. Some upgrades give a discount on the Flightstones. Once an item has been upgraded to a certain level, it can be downgraded and sold to the upgrader at a lower cost.
A lot of locations offer upgraders for items, including the main Island and a few outposts. The NPCs offer an upgrade coupon and a chance to obtain a new recipe. The upgrade discount increases when more items are upgraded. It can also be increased by having players finish certain achievements or quests.
Icewind Dale does not have an item upgrader at beginning unlike Cromwell from Baldur's gate II. Instead the NPCs that are available to help with upgrades must be acquired through a variety of means that are both an improvement as well as a disadvantage.
In Season 3, many new features have been added to the upgrade system. When a player has an upgrade to a particular level of an item for a specific armor slot, upgrading further items to that level will be less expensive, even in the event that they belong to another set of gear.
The discount is available to all accounts. Similarly, the amount of Harbinger Crests required for upgrades is also cut and is not available until players have reached certain milestones in their achievement.
Crests
Players have a number of options when it comes to upgrading their equipment in WoW. Flightstones are an item that is available to everyone for upgrading. Crests are more specialized and are used for specific item level upgrades. please click for source are an integral element of the Dragonflight Gear Progression System, which was introduced in version 10.1. They are available in four ranks.
First, you must be aware that Crests are only available to gear that is of a particular rank. Each rank comes with a different upgrade path. The easiest and most straightforward upgrade costs 15 crests. The most complicated upgrade requires up to 20 crests, based on the type of gear that is being upgraded.
Players can earn crests by finishing tasks at the appropriate level. This could be by doing outdoor activities or completing dungeons and raids in any difficulty to earn lower-level gear or Mythicbosses of raids or dungeons with heroic difficulty for endgame gear. These crests are then exchanged with an item upgrader such as Cuzolth or Vaskarn in Valdrakken for the appropriate upgrade steps and routes.
Using these new currencies isn't that difficult however, the system introduces some changes to the overall upgrade process. For instance, once an item reaches the highest level of upgrading for any rank (Explorer, Adventurer, Veteran, Champion, Hero, or Mythic) it won't need Flightstones to be upgraded. This change allows players to upgrade their equipment to the highest level possible for all their characters rather than relying on seasonal loot.
Another significant change is that crests only have one purpose and it's crucial to make use of them in a responsible manner. It is best to use your Whelpling-rank crests on the highest-quality gear you can find, and save Drake and Wyrm Crests for the next set of upgrades. This is especially applicable to rings and trinkets that take up multiple slots on the character that will be able to take advantage of the account-wide discount when all of the slots are full of high-quality equipment.