Seal Refine Skill

To upgrade refine skill seal online, you can do at the blacksmith NPC. With upgrade refine, increases the stats of your items, defense and attack of that item. The maximum level you can get on your weapon is +12. Below, refine items to upgrade your weapon :
1. Crystal, upgrades from +1 to +3
2. ruby, upgrades +4 to +6
3. diamond, upgrades +6 to +9
4. pink diamond, upgrades from +9 to +12

When the upgrade fails, both the item will disappear

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