In the Alfheim Wilderness, even the catastrophe-level demons need food to survive.
For demons at this level, the best food is city-breaking level demons.
City-breaking level demons are weaker than them but can still provide plenty of nutrition needed for their survival.
Although other catastrophe-level demons could provide even more nutrition, dealing with them would also consume a lot of energy. So, all in all, hunting city-breaking level demons is more suitable.
The depths of the Gass Forest are undoubtedly one of the areas in Alfheim with the densest concentration of catastrophe-level demons, because the battles between city-breaking level demons here are the fiercest, making the birth of catastrophe-level demons more likely. There are also many city-breaking level demons here to provide enough food for the catastrophe-level demons.
Without these city-breaking level demons, catastrophe-level demons might have to roam all day, searching for survival food.
