Yang Jian crush

When he saw that another Zhou general had joined the battle, Mo Lishou hurriedly released his ermine into the air. It transformed into a form as large as a white elephant and, swooping down, swallowed half of General Ma Chenglong in a single gulp.

This poem is proof:

Such a beast has cultivated the art of invisibility and harnessed the yin and yang. Its size can change at will, and it devours men's hearts like a bear.

Seeing this, Yang Jian was secretly delighted. "So that's the bastard and the cause of all the trouble. I'll deal with him!"
The Mo generals did not know that Yang Jian had cultivated the Jiuzhuanxuangong. When the spotted ermine flew up into the air again, it swallowed half of Yang Jian. Nezha saw it all, and retreated into the city, rushing to the prime minister's mansion.

- (irrelevant portions in between here)

Mo Lishou took the mink from his bag. "Darling! You can do no greater service then to eat both Jiang Ziya and King Wu." Released into the sky, the mink flew off and disappeared. But the ermine was a wild animal. How could it realize that by swallowing Yang Jian it had brought disaster on itself? Yang Jian had cultivated the Jiuzhuanxuangong. He could transform into seventy-two different forms and was to become the Divine Immortal of Purity and Decency.

In the belly of the mink, he heard everything the four generals had said, and yelled "Bastard, you have no idea who I am!" Yang Jian then grabbed the mink's heart and squeezed. The beast fell from the sky with a shrill cry. Yang Jian swelled his body until the ermine split in two; he then jumped out.

Investiture of the Gods - Translated by Gu Zhizhong