Chương 548: Combining Wind and Lightning

Although Han Li had anticipated that the treasure refinement wouldn't merely take a few days, he was quite shocked to find that the three demon cultivators sat cross-legged in complete stillness for five entire months while refining the bizarre material with their core flames.

During this period, apart from stopping four times to recover their magic power, they had kept their demon cores suspended in the air, continuously spouting out core flames in a leisurely manner. Their statuses as grade eight and nine demon beasts clearly weren't just for show. Their magic power was truly profound.

Because Han Li was refining Qi the entire time, he had managed to preserve his full state of magic power. The miniscule amount of magic power that the light barrier consumed could hardly be considered significant.