https://cases.gg/item-upgrader
What is an Item Upgrader? The item upgrader allows players to increase the quality of their gear. To upgrade items, you will need the appropriate currencies and items. For weapons and armor this includes Valorstones and crests. Other upgrades, like Hot Potato Books, give weapons an increase in stats or allow them to be used in dungeons. These upgrades are usually available in the cash shop. Leveling An item upgrader allows players to increase the quality of their equipment from various sources. It costs Valorstones and crests to increase an item's level,