WoW Upgrades - The Item Upgrader
Upgrades will give you a boost to specific stats. Each upgrade increases the level of an item by 3. Each upgrade also boosts a random substat.
Upgraded gear generally sees more value in trade regardless of whether it has low requirements (like the FB shield of the sorc) or very high stat variance (like the eth titan weapons). Upgrades aren't as useful for those with higher variance because of the requirement to roll the perfect version.
Recycle Points
The upgrader for items allows players to upgrade their gear to a higher item level by supplying the appropriate currency to the NPC. Upgrades can be applied to any kind of armor or weapons. The item used to upgrade the item will be consumed and can't be used again. Upgrades can also be used to create the enchantments.
The upgrader can be found in all major cities and can be accessed anytime to upgrade your equipment. It is recommended to visit the upgrader once every few weeks to ensure that your equipment is up to date.
upgrade item of upgrading 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 instance, upgrading a chest piece from Benthic to 385 ilvl will cost 20 recycle points while buying a similar item from a different player will cost 105.
Valorstones
Upgrades are useful items that can be used to upgrade weapons, tools, armor, and accessories. They can be purchased by players through item upgrader NPCs in exchange for different currencies, and can be found in random treasure lists. Once an upgrade has been purchased, it can be used on any weapon or tool using an button, which displays a preview of the item at the next upgrade level in the event that the player has enough materials.
The cost of upgrades varies based on the slot of the item and current item level and the weapon's price is higher than gloves or bracers for instance. Each upgrade costs 15 Flightstones and a number of crests, with certain upgrades having a discount to reduce the cost of the Flightstones or crests used. Once an item has been upgraded to a certain degree it is able to be degraded and returned to the upgrader for a lesser amount of both currency types.
A lot of locations offer upgraders for items, including the main Island and a few outposts. The NPCs provide both an upgrade discount and the chance to acquire a new upgrade recipe. The upgrade discount increases according to the number of items being upgraded. It can also be boosted by having players complete specific achievements or complete quests.
Unlike Cromwell in Baldur's Gate II there is no upgrader for items available at the beginning of Icewind Dale. Instead, the NPCs that can be used to upgrade must be acquired through several methods, which is both an improvement but also a drawback.
In Season 3, a number of new features have been added to the upgrade system. After a player has earned an upgrade to a particular level of an item for a specific armor slot, upgrading further items to the same level will cost less even if they belong to a different gear set.
The amount of Valorstones required for upgrades is reduced, and the discount is affixed to all accounts. The amount of Harbinger Crests needed to upgrade is cut also, but is only available after certain milestones have been reached.
Crests

When it comes to upgrading gear in WoW, players have a few options. Flightstones are a currency that is available to everyone who wants to upgrade. Crests are more special and are utilized during specific upgrades to the level of an item. Crests are the main component of the Dragonflight gear progression system introduced in 10.1, and come in four ranks.
item upgrading to remember is that crests are only able to be used on equipment that is of a particular rank, and that every rank has different requirements for its upgrade path. The simplest and simplest upgrade costs 15 crests. The most complex upgrade requires up to 20 crests, depending on the type or gear that is being upgraded.
Players can earn crests by completing content at the appropriate level. This could be done by engaging in outdoor activities or doing dungeons or raids in all difficulty levels to obtain lower-level gear or Mythic+ raid bosses or dungeons with heroic difficulty to obtain endgame gear. The crests can later be exchanged at an upgrader NPC, like Cuzolth in Dornogal or Vaskarn in Valdrakken to get the appropriate upgrade paths and steps.
Utilizing these new currencies isn't that difficult however, the system does introduce some changes to the overall upgrade process. For instance, once an item is at the highest upgrade level of any rank (Explorer, Adventurer, Veteran, Champion, Hero, or Mythic) it won't require Flightstones to be upgraded. This allows players to upgrade their gear to the highest level possible for all their characters instead of relying on seasonal loot.
It's also essential to use crests wisely, as they have only one purpose. It is best to use your Whelpling-rank crests on the best gear you can find and keep Drake and Wyrm Crests for the next round of upgrades. This is particularly true for items like trinkets and rings that occupy multiple slots on the character, which can only be eligible to avail the account-wide discount if all of the slots are full of high-quality gear.