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World of Warcraft - Item Upgrading Players can upgrade their armor, weapons, and trinkets by spending appropriate currencies and items at an upgrader NPC. It requires appropriate currencies and items to be spent at an item upgrader NPC. For instance for a weapon, one that is tied to the default upgrade template for a weapon will increase an additional 3% of attack damage each time it is upgraded. The amount of damage it will gain is based on the stat value. Recycled Items Using recycled items is a great met