The four divine beasts were not like the spirit beasts that Jiang Yi had encountered; they had been tamed and not subdued. They did not have a mental connection to their master and, hence, had not perished because he had died.
However, these four divine beasts had a very deep connection with the previous Phantom King. It was said that when his corpse had been brought back, the four divine beasts wailed in mourning for a full day and night before entering into slumber. In the past decades, they had not woken up even once and had slept in this battle arena, becoming like four statutes. No one expected that they would wake up at this moment because of Jiang Yi's terrifying piece!
"Uh…"