https://www.openlearning.com/u..../fossbertelsen-sl76y
https://cook-hegelund.blogbrig....ht.net/from-all-over
World of Warcraft - Item Upgrading The upgrade of an item lets players boost the gear rating of an item up 700 points, and then give it a bonus. Items can be upgraded by keeping them in inventory and heading to the kiln. Certain items can be upp'd for their unique stats (like perfect made breakpoint armour that can be rolled to use in melee PvP) and others, like weapons, do not vary