He’s not the only one

With the five of them working together, the elephant Apostle of Darkness was eventually overwhelmed by the five of them.

He tried his best to fight against them, but there were just too many angles that they were attacking from. 

No matter how he tried to fight back, it was impossible for him to cover all these angles.

Finally, when he was trapped, Yan Ling came in with the final blow.

With one single swing, she cut right through his trunk and severed his nose from his body.

It seemed that this was the crux of his power as his body suddenly shrank after he had his nose cut off. He kept shrinking until he was back to the same size as before, but this time he didn't have a nose in his human form.