The Gorilla King Edros

Roar! 

The hundred-meter-long blood dragon produced a roar that shook the sea of blood. Opening its mouth, it breathed scorching hot fire, surging directly for the corpses.

The blood dragon did not seem to exist to the mutated beings, all they had in their sight was Michael, nothing else. They did not avoid the dragon's breath at all, they just wanted to rip  Michael apart.

The enormous dragon breath directly engulfed over ten of them. However this was not just an illusionary formation, as Lailah said before, this was made of two formations, killing and illusionary formation.

Therefore the fire ate away a large portion of the mutated beings' bodies as Michael watched on in shock. As expected, their indestructible bodies came into play soon afterward, they returned to how they were before, continuing their charge at Michael.