Is the Poison Master Weak? My Poison Can Be Stacked Infinitely!

Jiang Ran traveled through time. He traveled to a world where everyone changed jobs. On the day of his job change, he awakened [the only hidden auxiliary profession·Breaking Bad]! Poison Master is the weakest support profession. It has no effect at all in combat. But what they don't know is that Jiang Ran has also awakened the only hidden skill - [Evil Medical Treatment]! His poison can be stacked infinitely. The more layers stacked, the higher the damage! At the same time, his poison can also restore blood to himself. The more layers, the higher the blood recovery! From then on, Jiang Ran became a walking poison can. "Poison Master is weak?" "Sorry, I'm Breaking Bad!" "If one level of poison can't kill you, what about ten, one hundred, one thousand, or ten thousand levels?" "The BOSS's health bar is too thick?" "I'm sorry, my poison is a percentage damage, and it can be stacked infinitely." "Mr. Boss, how thick is your health bar?" … Some years later. Only then did everyone realize that Jiang Ran's profession was not weak at all. It's so powerful! "No, why did I get poisoned before I did anything?" "Damn! Why does his poison deplete the blood so much? Half of the blood bar is gone before I even take action!" "Why does he regenerate blood so much? The damage I did was not as regenerative as he did!" "He gives us poison, but gives him his own health. It's poisonous and milky, right?!" …