Many civilizations had a popular tale about evil spirits taking revenge, but anyone who truly understood the dead knew that it was utter nonsense.
The probability of a dead soul taking revenge was extremely low. It was not impossible, but it generally only happened on lower planes, and even then, the odds were minuscule. Some lifeforms possessed innate talent in Mental Strength, but had never developed it while alive. After dying with resentment, they might awaken their potential and use their explosive Mental Strength to create certain magnetic-field effects on low-level planets. Combined with certain specific opportunities, there was a slight chance of accomplishing such a thing as revenge by the dead.
But the odds were no different from an ordinary person winning the lottery.
On higher planes, it was basically impossible. The dead were regularly purged after death and could not remain in this world at all. Even if their talent erupted and produced a curse, they could never stand against a proper alchemist. After all, the Living Realm favored the living.
Of course, there was not absolutely no chance. If the dead could climb back from the Dead Realm, there was still a sliver of hope.
But even that hope was exceedingly faint. Ever since the Scourge Army invaded the universe, cracks had indeed appeared between the Life and Death Realms, becoming channels for the dead to smuggle themselves across. However, these channels were extremely unstable and appeared randomly. Very few could remain stable, and once discovered, they would be sealed instantly by the nearby gods.
For the dead to use a crack to return to the Living Realm, the odds were even lower than winning the lottery. Even those mighty liches had no confidence that they could definitely find a crack and return, because the Dead Realm,