World of Warcraft Item Upgrades
Item upgrades are a way to boost the stats of an item. Depending on the type of upgrade, it can boost the rarity of an item, or its Mark Level and boost additional stats.
Each item comes with a track for upgrading it. Each upgrade items increases the cost of the next one by a certain amount.
Item Level
When an item gets upgraded, its stats improve in value. This value is the total of all its upgraded advantages (attack magic attack, attack defense). Upgrades can be expensive, dependent on who you employ and what you decide to do. This is due to how many perks need to be replaced to allow the item level upgrade to be upgraded.
The level of an item level upgrade is a commonly used measurement of power and is visible on all item tooltips. It is also used to determine a gating condition when waiting to queue for dungeons and scenarios and raids, and to limit the amount of PvP gear players can wear (since PvP is restricted to the lower levels).
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