Wang Lin had already taught Ouyang Hua the method of making the soul flag. However, the Demon Spirit Land was lacking in materials, so making soul flags was going to be difficult.
When he realized this, Wang Lin found some time to carefully think up a solution to the matter. He managed to use some of the steel trees, beast skins, and some seals to just barely make something that could imitate the effect.
This substitute flag could only seal up to 10 souls, meaning the limit was a 10-soul soul flag.
But this object won in terms of quantity because one could use 10 of these flags at the same time. Although it was not as strong as a 100-soul soul flag, it still had half the power.
Same as the spells, Wang Lin hid a fatal flaw inside this substitue soul flag, and only he knew about this fatal weakness. After all, Wang Lin was the only person on planet Tian Yun that knew the Soul Refining Sect’s spells.