C217 Combined!

The bloody light was dazzling, and the body of the dark-red Scaled Demon instantly swelled up, its muscles covered in black scales swelled up to the point that they were about to burst, and its aura also increased a bit.

As the long and thick tail with a barbed tail twitched, sonic booms rang out in the air. The horrifying power contained within it caused one's heart to palpitate