Fortune teller Wei Zhi.

That's because Wei Zhi's official position is actually an angel made in heaven and earth, and it was God's will that made Wei Zhi behead King Jinghe, so Wei Zhi was qualified. Plus Wei Zhi is the minister of Li Shimin, while Li Shimin is the real dragon emperor, and King Jinghe is not the real dragon king, so Wei Zhi can behead the dragon king.

Wei Zhi beheaded the Dragon King in The Journey to the West. At that time, because it rained with a fortune teller when the King of Jinghe traveled to the world, the King of Jinghe thought he would win, but he finally received an order from heaven. At this time, King Jinghe dared to disobey the will of little rain, and was finally expected to be beheaded.

The Journey to the West wrote that King Jinghe was instructed by fortune-telling to find Li Shimin. Li Shimin was soft-hearted, deliberately looking for Wei Zhi to play chess and dragging Wei Zhi, but unexpectedly, Wei Zhi fell asleep. According to the truth, it must be all right to fall asleep, but after falling asleep, the soul cuts the dragon king.

One thing to note here is that Wei Zhi's will is actually a dream of crossing many rivers, which means that all this is arranged by God. Wei Zhi was a courtier of Datang, but Li Shimin trusted Wei Zhi very much at that time. He was the prime minister of Datang.

Li Shimin is a real dragon emperor, but King Jinghe only has the shape of a dragon without a real dragon, so it is also an industry dragon. And the dragon is a fake dragon, plus Wei Zhi is the angel of heaven on earth, so Wei Zhi, the dragon king who killed Jinghe at that time, was the most capital.

Plus at that time, King Jinghe made a bet with Yuan Shoucheng, a fortune teller on earth, so it was a great event on earth. This is also very reasonable, so it seems that Wei Zhi is the most suitable person to replace the beheading of King Jinghe.