Intermediate and advanced Elemental Crystals are used to build Elemental Arrow Towers, and the required quantity is quite large.
Expert-level Elemental Crystals are prepared for warriors to break through to the fifth rank.
According to the calculation that a single warrior breakthrough requires 10 Elemental Crystals, Cao Xing needs to prepare at least over two thousand Expert-level Elemental Crystals.
Moreover, this is based on the current Territory Combat Power.
He will recruit more troops next, so more of these Elemental Crystals need to be prepared.
Of course, the Ice Dragon Mark is also needed.
Now, the Advanced Power Heart can also be exchanged with the Ice Dragon Mark.
In the Territory, the non-warrior profession subjects must use the Heart of Power to break through to the fourth rank.
However, Cao Xing also has more precious items to sell.
When arrows and magic potions were sold out, the chat channel continued to discuss Cao Xing.
