Chapter 169: Chapter 167-! temporary reinforcement

Tang Zhen decided to upgrade the Holy Dragon City to Level 2. He had waited for this day for a long time, and in his heart, he was already somewhat impatient!

But before that, he still had some things to prepare.

The first was the defense of the city Tower. Compared to the monster attacks when the city Tower was built at Level 1, the attack would be 50% stronger when it was upgraded to Level 2. However, for the Holy Dragon City, which was currently surrounded by a large number of troops, that number of monsters was not even a fraction of the total number!

However, due to the undead army surrounding the city, when the undead monsters were leveling up in the Holy Dragon City, they would definitely launch a crazy attack on the Holy Dragon City due to the influence of the law. The strength of the attack would far exceed that of an ordinary monster attack. Therefore, Tang Zhen had to be prepared!