Explanations

"If you keep killing them, they will keep getting stronger and eventually revert back to their true size and power," The bear man said. "They are beasts that can destroy entire worlds on their own. They are calamities that brought the end of countless societies."

When Rain heard the bear man's revelation about the guardians being calamities that brought the end of countless societies, he paused, allowing the weight of the information to sink in. The idea that these creatures could destroy entire worlds and had a history of causing such devastation left Rain in deep thought.