The next three skills, "rotten corpse poison" should be a type of toxin, which means it's one of the fundamental abilities of a zombie. Most creatures of corpse types carry all sorts of toxins and viruses.
Fang Jie had someone bring some livestock over for experiments and found that this toxin could be directly sprayed or attached to silk threads. The potency of the toxin wasn't very high, at least not for those at the Gold level.
"So, this skill is meant to deal with the grunts," he said.
Just as Fang Jie finished speaking, he suddenly saw those corpses starting to move. No, that's not right, this thing is probably not simply a toxin. Fang Jie suddenly realized that those poisoned corpses were actually starting to melt.
But there were some corpses that did not melt, they just transformed and absorbed the substance that melted the gaseous corpses.
By the time they stood up again, they had turned into rotten figures.