It was not a problem to activate his tenth Birth Chart in the human region of his Birth Palace using a beast king's life heart. However, he would need better life hearts to activate Birth Charts in the earth and heaven region. After all, it would affect his strength significantly.
Lu Zhou thought about the Fire Phoenix.
The Fire Phoenix was known as the Immortal Bird. Did it really mean that it could not be killed? It was unlikely. After all, if it was truly immortal, there was no need for it to run away earlier and even abandon its child.
"It's a pity... If I only I can obtain a divine beast's life heart…" Lu Zhou shook his head. In any case, a beast emperor's life heart was very good for now. He would think about divine beasts' life hearts in the future.
Lu Zhou observed the changes in his Birth Palace. The rate it was sinking was not bad; it was better than he had expected. He nodded in satisfaction.