Fast Leveling
Yan Yu was running across the battlefield like a shadow, she was a reaper that took the lives of the creatures she walked through. At every cut of her sword, a creature was killed rather miserably, its body melted by poison. Her level was rising rapidly, after a few hours running and cutting, Yan Yu has already leveled some times.
The young people were looking at her with shocked faces, for they never imagined that there would be someone who was at levels below 200 who could do this kind of killing. They began to think she might have come from some influential group.
Yan Yu was not caring about those around her, she focused on running forward and fighting more powerful creatures. Her poisons had effects only on creatures below level 300, above that, the effects were minimal.
She learned to potentiate only poisons by looking at Herman's memories, for he also did this kind of thing when he leveled. Using poison increased the death rate of the opponents.