World of Warcraft - Item Upgrade
Item upgrades allow players to increase the level of equippable weapons and armor. This boosts the stats of the item and sometimes adds buffs or rerolls on an attach.

It is important to remember that upgrading magic and common gear isn't always worth it. Rare and unique equipment will quickly surpass the standard gear and upgraded magic.
Cost
When a player decides to upgrade an item, they have to spend Gold to do so. The cost of upgrading an item depends on its current level and type of upgrade selected. For instance upgrading a weapon is typically be cheaper than upgrading armor, since weapons have lower requirements for level. The amount of Gold required for upgrading an item increases as the item is upgraded.
Upgraded items will also have enhanced stats that can boost its performance in various ways. This may include boosting its attack power or critical strike chance. A upgraded item can also provide additional buffs to the unit it's equipped with. These upgrades are able to increase the overall strength of a group or a single unit, and could have a significant impact on the gameplay.
The items can be upgraded at any item upgrader NPC in the game. Generally these NPCs are found in major cities or questing locations. You can also find upgrades for items by visiting dungeons that have high-level bosses, and speaking to NPCs in the garrisons of your faction.
The upgrade system for items in World of Warcraft provides players with the ability to upgrade the levels of weapons, armor, and trinkets. The process is similar to that of gear reforging in Mists of Pandaria and Warlords of Draenor however, instead of using the currency that is appropriate, players must visit an item upgrade r NPC to complete the process.
Item upgrades can be costly, especially when it is related to armor and weapons. Based on the upgrade track you choose, each item level increase will cost Valorstones or Crests. The costs are prohibitive for those who do not have the funds or are unwilling to grind.
Fortunately the game allows players to play a reroll of an upgraded item by using an exclusive tool within the menu of items. This option replaces the upgraded item with a level 1 version that offers different bonus effects. This can be useful to get better scores on items that have been upgraded, but can be a waste of money.
Requirements
The process of upgrading equippable items such as weapons, armor and trinkets is to raise the item level. This can boost their effectiveness and make them more effective in combat. Players can upgrade gear by spending appropriate currencies at an item upgrader NPC. However, players should be aware that some upgrades have specific requirements.
Initial upgrades only boost the effectiveness of the item's base level. Later upgrades provide more significant boosts. For instance, upgrading a weapon from three to level six will boost the weapon's damage by two levels. In addition the upgraded item will get an additional stat that is based on the level at which it was purchased. The bonus consists of a guaranteed substat as well as a randomly generated stat that will change from upgrade to upgrade.
Reroll Tokens can be used to reroll an item that has been upgraded. The new item will have a different set of extra bonuses, as well as an lower base level. The rerolled item also has different requirements for dexterity and strength. It is important to note that the item rerolled does not have its original level or even a fraction of its resource.
Rerolling some upgraded items is only possible if the item was upgraded was an Epic, Rare or Unique. Extraordinary items are also eligible for rerolling, but their original stats will be replaced with a flat bonus. Rerolling an item that is Rare or Epic item will result in an ordinary version, while rolling the Epic version will result in an elite version.
An upgraded item may also come with additional modifiers, which could further boost its stats and enhance its performance. These additional modifiers don't come with the upgrade cost. You can purchase them at the Trading Post, or through other players. Additionally, they can be earned by completing specific tasks in the game.
To upgrade an item of equipment, you need to visit the NPC [Armorto upgrade an item, visit the NPC [Armor] Boboko in Central Flarine. Based on the kind of item, you will require one or more Power Dices (Dice 6 is available from monsters 21+ and Giants while Dice 12 is available from Bosses). Additionally, you will require different amounts of Minerals and Erons.
Time
Item upgrades are a way to boost your ship's stats and gear without having to upgrade them. They're not cheap, but they can be a great method to boost your stats and not have to spend as much time in battle. It's crucial to know the cost and benefits prior to investing your money or time.
Each upgrade boosts the stats of the item by in a specific amount, and offers the chance of obtaining an additional substat. The extra substat is random, and can vary from a slight increase in one statistic to an even greater boost in another. It is best to concentrate on the top-performing items in your slot first, since they will provide a greater return on your investment.
You can view the amount of time needed to complete an upgrade when you open your inventory and select a weapon, ship or accessory. The upgrade window will show the progress and anticipated completion time. In some cases, you may be capable of speeding the process by using a Glyph.
Black Lion Salvage or Ascended Salvage sell a high-level salvage kit that permits you to retrieve all or a portion of upgrade components. However, this doesn't include legendary equipment or upgrades that can only be retrieved using an Upgrade Extractor, or by reclaiming them with the corresponding karma merchant.
Rewards
The upgrading of items rewards players with currency and a variety of items. In addition, every upgrade has a chance to provide a random extra stat bonus. The bonus value will vary for every upgrade, and is usually higher for rarer items. Players can conduct the Great Vault search to see whether an item is upgradeable prior to spending tickets. The search can also help determine if the item is of the appropriate level and if the player would benefit from a specific upgrade.
During the upgrade process the item will gradually increase to its next level, but it's not always able to reach a fully upgraded bar. This process makes use of Growthstones and Sollant but there is an 80% chance of obtaining a fully upgraded item in just one cycle. The higher the level an item gains the more stats will be and the more items can be upgraded.
Upgrade components can be slotted into armor, weapons and trinkets to provide an attribute benefit or an additional effect while the equipment is being used. 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 an incentive. Players can also find upgraded items by using an Upgrade extractor or salvaging with a high-tier salvage kit. Glyphs placed on gathering tools can be freely swapped.
The player can transform an item into another upgradeable item by selecting it and pressing the green button an arrow for reroll. This will change the layout of the item window and allow players to select up to six items to "recycle". The item will be replaced by an item of level 1. Recycled items don't keep their current level or amount of resources used to upgrade them.
The highest level of upgrade an item can achieve is determined by its tier and the quality. Rare items can be upgraded to an maximum of level six while Rare and Epic items can be upgraded to levels nine. The upgrades to an item are added to the base statistics of the item, meaning that they won't increase after a certain amount.