"Haha, although it is difficult, what a gain. What profound magical powers, great heart demon magical powers, and supreme magical powers of the demonic path. As long as you practice successfully and condense the inner demons, you can not only kill all demons, but also directly attack the enemy's heart and trigger the heart demon. The deeper your cultivation level, you can even directly make the enemy go crazy on the spot without being ashamed of yourself. There are also invincible secret techniques to save your life, transform into a mental demon, and the inner demon will be immortal, and you will be immortal!" Wang Gan really couldn't describe his mood at this moment. This great heart demon magical power is enough to rank among the various magical powers he practiced in one piece. It is probably enough to compare with the three supernatural powers of Chaos Daluo Immortal Art, the Great Immortal Art of Suffering Sea, and the Five Elements Great Immortal Art.