Old Eagle's revival proved that Yang Jian's previous deductions had been correct. By using the Liar Ghost's supernatural power to create a living body, then combining it with Ghost Shadow's ability to invade and alter memories to implant a living person's memories into it, he could indeed revive someone.
For now, this method seemed to have no side effects. It was far better than using the Ghost Mirror for revival.
Reviving someone with the Ghost Mirror required releasing a fierce ghost as the price. Their memories would only remain as they had been at the moment they looked into the mirror, and someone had to stay beside it to pull the revived person out. Otherwise, they might be killed by the fierce ghost inside the Ghost Mirror. The side effects could be said to be severe.
The only problem was that Yang Jian could only revive people whose memories he had stolen. If their memories could not be stolen, he had no way to revive them.
For example, Feng Quan. Because Feng Quan controlled three ghosts, the supernatural interference surrounding him prevented Ghost Shadow from stealing his memories, so Yang Jian could not revive him.
Then there was Xiong Wenwen.
He was a paper effigy himself, equivalent to an anomaly, so his memories could not be stolen either. Yang Jian could not revive Xiong Wenwen.
The same went for Ghost Tamers who could resist Ghost Shadow's invasion. Yang Jian could not revive them either.
So this method still had weaknesses and flaws.
But this was already enough.
At the very least, Yang Jian could revive ordinary people without restraint, and the cost would be very small—so small it could almost be ignored. Since he was now an anomaly, as long as he did not use the Liar Ghost's supernatural power