If the cultivation difficulty was really high, the 30-day period in the Abyss Battlefield might be quite tight.
So, speed was essential.
Since Terres had set no level requirement for the demons, only a quantity, all one needed to do was to find and kill any demon.
The Quel'dorei World had been invaded by the Abyss for seven hundred years. Although the elves' formidable magic power resisted the Abyss's incursion, such a lengthy period had allowed many Abyss Demons to exist in the world.
However, these demons typically hid in the mountains and canyons and did not appear in areas where elves were active.
Su Muyu controlled the Chongming Bird to carry Lu Heng while flying and performing aerial reconnaissance to locate traces of demons.
Due to the presence of powerful elves living in places like Storm Cliff and Twisted Tower, there were basically no demons in their vicinity.