(Policy strategy + hegemony + alternate history + cool article) Cao Hua traveled to the end of the Han Dynasty and became Cao Cao's disciple. He deceived the princes at the beginning and made Cao Cao the leader of the alliance. He used poisonous tactics to beat Lu Bu at the Hulao Pass. He entered the northern border alone and frequently used a series of poisonous tactics to make Yuan Shao unable to succeed. The three Yuan brothers died in a fight and took away Yuan Shao's daughter. Jia Xu: Everyone says that I, Jia Xu, am the most poisonous person in the world, but I am not even one ten thousandth as vicious as Cao Hua! Cao Cao: My younger brother is good at everything, but he is too poisonous. Please calm down!