A large number of pitch-black flames directly scattered towards the demon beasts in front of him and directly covered these demon beasts.
Screams instantly sounded from these demon beasts. They began to fall to the ground and roll, wanting to extinguish the flames on their bodies.
Lu Yan looked at the scene in front of him, and his eyes flickered slightly. It seemed that although this Netherworld Soul Flame could be used on the soul, the physical burning effect was still very limited.
Moreover, Lu Yan also saw a phenomenon, which was that the Netherworld Soul Flame was very difficult to extinguish.
If it were an ordinary flame, it would definitely be extinguished a little after being suppressed and rolled by the demon beasts. However, the Netherworld Soul Flame on these demon beasts did not decrease at all.