Across the universe as a whole, the Old Gods were not particularly powerful creatures. They were merely a vanguard army deployed by the indescribable forces of the void to corrupt and infect every planet containing a juvenile Titan. They could not even defeat the soldiers forged by the Titans.
In Azeroth's ancient days, five Old God seeds descended upon this planet, which was said to be an exceptionally powerful juvenile Titan, but they fell into infighting as soon as they landed. The Old God named Xal'atath was devoured by the other four. Yet apart from the strongest Old God, Y'Shaarj, who sent the Titan Keepers fleeing in terror and had to be dealt with by the Titans themselves, the other three were all defeated by the Titan Keepers' attacks and locked inside the Titans' prisons.
But that was from the perspective of those powerful cosmic beings. To Azeroth's natives, the Old Gods were an unimaginable evil. Unlike other powerful creatures, although their bodies were twisted and hideous, their strongest weapons were their warped minds and chaotic nature.
It was said that wherever the Old Gods descended, ordinary creatures' minds would be twisted and scorched. They would either die or survive in a distorted form, accepting the transformation of chaos to become something grotesque.
These creatures usually possessed winding, revolting tentacles coated in slime, eyeballs growing everywhere, brightly colored fins or scales, and limbs that were either slender or astonishingly thick. Their inconceivably chaotic appearance was the very definition of distortion, and they carried a field of chaos around them. Any creature of order would feel sick and oppressed at the sight. That was simply not what a normal creature should look like!
For example, the Old Gods Guardian Dick had just slain, a disgusting creature called a Faceless One, had