Dice Ores are items you can use to upgrade your Dice. 

 

If you don't have enough Dice to upgrade its Class, you can use Dice Ores instead.

 

Please note that your Dice Ores must have the same rarity as the Dice you want to upgrade.

 * 100 Dice Ore Pieces can be exchanged for a Dice Ore.

 * You can check the number of Dice Ores you have from the Items tab in your Inventory.