https://vang-skafte.hubstack.n....et/why-is-upgrade-it
The Importance of Upgrades in World of Warcraft Upgrades are new items that increase your stats. They can be used to upgrade your armor, trinkets and weapons. Upgrades to items employ a method known as "upgrade pity" to determine probabilities. This system is designed to minimize extremes of chance and provide a safety net in the event of an upgrade. Armor The gives players the ability to upgrade equipment levels of their armor, weapons and trinkets. The upgrades are applied to the equipment by visiting an upgrader NPC with