The Avatar of Holy Twilight's soul extraction ability can extract a person's soul weaker than the avatar and turn it into a Knowledge Star in the Knowledge Galaxy!
This ability was extremely nefarious because extracting a soul was extremely painful. But it has its own benefits; the knowledge star condensed from this ability will have the owner's full memories, his cultivation experience, and even law insights to 100%. Even his soul probe can't emulate that!
Furthermore, these knowledge stars can also be used with fictional knowledge to trick others.
Right now, in Ace's hand a gray translucent figure of an expression old man it was none other than Jonathan's soul while his body were lying lump in his feet!
Ace couldn't help but sigh, seeing the soul in his hand, it was his first time trying this ability because every time he used it his victim would die horribly.