World of Warcraft Upgrades and item upgrade Upgrading
Upgrades can increase the value of weapons, armors and rings. They also increase bonuses like damage from PvE and crit chance.
If the template for upgrading a weapon ends in %, it will gain 3% of its previous attack damage every time it is upgraded.
The cost of upgrading an item is determined by the item's level. The cost rises with item upgrader (mouse click the next article)'s level.
Components
Upgrade components can be incorporated into weapons, armor and trinkets in order to provide them with a boost in stats or add a bonus effect. They can be obtained through crafting, buying from vendors or trading with other players, or looting. Certain upgrades also come with specific cosmetic effects.
Upgrade components are only available to equipment that has a slot. The item upgrader kit must be at least upgraded to blue level before a component can be applied. Like other mods, upgrade components can only be used once; they can't be used multiple times or replaced by new upgrades.