Not only greater races and all kinds of powerful individuals from intelligent races had lingering feelings of wrath and hatred toward the Ancients and Primordials.
There were also various Monster Clans who had attained a certain degree of intelligence. These Monster Clans sought revenge more than everything, especially when it came to the races that made living the most difficult for them.
Rory had been searching for various Monster Clans and she got hold of a bunch of them. There were even Mythical Monsters whose power was equivalent to Ancient True Gods without attaining the title of a Beast God.
The Title of a Beast God was something that could only be attained by one member of a monster kind each, one element each, and so on.
Nobody really knew how many Beast Gods existed but their numbers were extremely restricted, and they were usually extremely powerful.