"Wind and fire dual-system magic! Is this the power of all-system holy magicians?"
Douglas was slightly shocked. The combined power of wind and fire magic was already comparable to a level 10 single-system attack magic.
Douglas didn't have much strength to fight back now, so he could only hold up a light shield with all his strength to protect his body.
The terrifying whirlpool of fire dragons in the sky rolled down, and in the blink of an eye, Douglas' figure was engulfed in it.
The fire dragon vortex continued to burn in mid-air for about three minutes.
Mubai looked nervously at the burning flame in front of him. The power of the storm in the flame increased the burning power of the flame. With Douglas's current strength, it might be difficult to withstand this dual-system magic attack.
The air was filled with bursts of mist-like yellow smoke.
After the fire dragon vortex gradually dissipated.
Douglas was still standing in mid-air, with the light shield protecting him in front of him dim. His face was paler than before, and his body was shaky, as if a gust of wind could blow him off his feet.
"If you dare to kill me today, the kid with your soul will never want to live on the mainland again." Douglas knew that he was powerless to resist now, so he could only threaten him with words.
After hearing this, Mu Bai showed a trace of hesitation on his face.
If you kill Douglas today, and the people from the God of Law Tower come to look for Mubai in the future, he is no match for him with his strength. However, if you don't kill Douglas, then your sacrifice will be meaningless.
Faced with this dilemma of choice.
Ryan had a hard time making a decision.
At this moment.
The sky above the entire imperial city suddenly darkened, and the sky was shrouded in a dark cloud. A terrifying force came from the depths of the cloud, as if it was about to engulf the world.
"Forbidden Art of the Undead, Death and Decay!"
Mubai and Douglas looked shocked at the same time.
"That damn necromancer actually launched such an evil spell!" A slight cold sweat broke out on Mu Bai's forehead. With his current strength, he would be under great pressure to resist this forbidden necromancy.
"No. If this forbidden undead technique were to come to the Imperial City, the entire Imperial City would be destroyed, and no one would be able to escape." After weighing in his mind, Mu Bai suddenly controlled the wind element and flew high into the sky.