There were a few things that could have gone wrong had Kent not appeared on the battlefield when he did.
The battle, while the Silent Graves were bound to lose, considering Axiom, Kailan, Fero, and Vargus would probably end up killing all of its members, the same could not be said for Avotha.
Physically, he is stronger than Warlord Biana. He has more techniques and an even stronger bloodline than she. However, she had something Avotha would have fallen prey to: her weapon.
The spear she wielded wasn't an ordinary weapon. In fact, it is quite dangerous to both Avotha and everyone in the 100,000km radius.
That weapon would have brought great calamity had Kent not seized it when he did. She would have severely wounded Avotha, and if motivated enough, she would have succeeded in killing him, too.
The spear has a deadly track record, the kind that Kent doesn't know, but he felt deep within his soul that it must be seized before it was successfully activated.
