World of Warcraft - Item Upgrade
The item upgrade feature allows players to increase the item level of equippable weapons or armor. This increases the stats and may also include buffs or rerolls an affix.
It is important to keep in mind that while you can upgrade magic and common equipment, it's generally not worth the cost. Rare and Unique gear will quickly outclass modernized magic and common equipment.

Cost
The player must pay gold to upgrade an item. The cost of upgrading an item is dependent on its current level as well as the type of upgrade selected. Upgrades to weapons are usually cheaper than upgrades to armor because weapons have lower requirements. The amount of Gold required increases as an item is upgraded.
A newly upgraded item will also come with increased stats, which can improve its performance in many ways. This may include increasing its attack power or critical strike chance. An upgraded item may also provide additional buffs to the weapon it is equipped with. These upgrades can be used to increase the overall strength of a group or individual unit, and could have a significant impact on the gameplay.
The NPC for upgrading items can be found in the game. Typically these NPCs are found in major cities or questing spots. You can also find upgrades for items by visiting dungeons with high-level bosses and talking to NPCs in the garrisons of your faction.
The World of Warcraft item upgrade system allows players to upgrade the level of their weapons, armor, and trinkets. This process is similar to reforging of gear in Mists of Pandaria or Warlords of Draenor. However instead of making use of currency, players will need to visit an upgrader for their item to complete the process.
Upgrades can be expensive especially for armor and weapons. Depending on the upgrade track, each step up in the level of an item can cost many Valorstones and crests. The cost can be prohibitive for those who don't have the funds, or are unwilling to grind.
Fortunately the game lets players play a reroll of an upgraded item by using an exclusive tool within the menu for items. This option will replace the upgraded item with a level 1 version that offers different bonus effects. This is useful to improve the roll of items that are already upgraded. However, it can be a waste of time.
Requirements
The process of upgrading equippable items like weapons, armor and trinkets is to increase the level of the item. This can boost their stats and make them more effective in combat. Players can upgrade their gear by paying the appropriate currency at an item upgrader NPC. However, players should be aware that some upgrades have specific requirements.
The first upgrades increase the stats of the item's base by one level, but later upgrades give more substantial boosts. For instance, upgrading a weapon from level three to level six will increase the weapon's damage by an additional two levels. A bonus stat will be added to the upgraded item based on the level. This bonus is a combination of a guaranteed extra substat as well as a random stat that will vary in value from upgrade to upgrade.
Reroll Tokens can be used to reroll an item that has been upgraded. The new item will have an additional set of bonuses, as well as a lower base item level. The rerolled item also has different requirements for strength and dexterity. It is important to remember that the item rerolled does not retain its original level or any wasted resource.
Certain upgraded items can only be rerolled if the original item was a Unique Epic, Rare or Rare. Additionally, exceptional items can be rerolled but the original stats are replaced by a flat-rate bonus. Rerolling a Rare item will result in a normal version of the same kind, while rerolling an Epic item will result in an elite version of the same kind.
An upgraded item might come with additional modifiers, which can further increase its stats and boost its performance. These additional modifiers aren't included in the upgrade price. They can be purchased at the Trading Post, or through other players. They can also be earned by completing certain missions in the game.
To upgrade a piece equipment, you need to visit the NPC [Armoror Boboko located in Central Flarine. You will need Power Dices depending on the item. (Dice 6 can be dropped by monsters 21+, Giants and Bosses; Dice 12 is dropped by Bosses). You will also require different amounts of Minerals, Erons and Giants.
Time is a factor.
Upgrades to items can be used to improve the performance of your ship and gear without the need to level them. Upgrades aren't cheap, but they are a good method to boost your stats without having to spend a lot of time fighting. item upgrading to be aware of the benefits and costs of upgrading your items before investing your money or time.
Each upgrade increases the item's base stat in a specific amount, and gives the chance to obtain a bonus substat. The additional substat is randomly assigned and could range from a slight increase in one statistic to an even greater increase in another. Concentrate on the things that perform best in slots first. They will provide a higher returns for your money.
You can see the amount of time needed to complete an upgrade when you open your inventory and select the weapon, ship or other accessory. The upgrade window will display the expected completion time and progress. In certain cases, you may be able speed the process of upgrading by applying an Glyph.
Black Lion Salvage or Ascended Salvage sell a high-level salvage kit that permits you to recover all or part of the upgrade components. This does not apply to legendary equipment or upgrades that can only be recovered using an upgrade extractor or returning the item to the Karma retailer.
Enjoy the Benefits
The upgrading of items provides players with currency and a range of items. In addition, each upgrade is able to grant a random extra stat bonus. The amount of bonus differs between upgrades and is usually higher for rare items. The Great Vault can be searched by players to determine if an item is upgradeable. The search can also help determine whether the item is a certain tier and if the player would benefit from a specific upgrade.
During the process of upgrading, an item will gradually increase to the next level, however, it isn't always able to reach the full upgrade bar. This process uses Growthstones and Sollant however there is a 10% chance of achieving a fully upgraded item within just one cycle. The higher the levels an item gains, the higher its stats will be and the more items that can be upgraded.
Upgrade components can be added to weapons, armor and trinkets to give an attribute bonus, or a special effect, when the equipment is worn. Some upgrade components also have cosmetic effects. Players can acquire upgrade components by crafting, buying from vendors or on the Trading Post, looting, or receiving as a reward. Players can also recover upgraded items using an Upgrade extractor or salvaging with a high-tier salvage kit. Glyphs that are positioned on tools for gathering are able to be swapped.
By selecting the item and pressing the green button, which has an arrow that rerolls players can roll it into an upgradeable item. This will change the layout of the game and allow players to choose up to six items for "recycling". The item will be replaced by a level 1 item. Rerolled items won't retain their status or the amount of resources needed to upgrade them.
The maximum level of upgrade for an item is determined by its tier and the quality. Rare items can be upgraded up to a maximum of level six while Rare and Epic items can be upgraded up to level nine. Upgrades to items are added to the base statistics of the item and will no longer increase after a certain point.