He must have mumbled [BONUS CHAPTER]
This superior special technique allowed him to make 5 instantaneous teleportations over a maximum distance of 100 meters, which was quite enough in this case.
His body was enveloped in a yellow light and the blade of his legendary sword had become incandescent red after he concentrated all the fire energy at his disposal on it.
As he wanted to retrieve the bodies of these magic beasts, he could not use one of his fire attacks which could have charred them without any problem even under water, so after that these giant sea snakes had all tried in turn to deprive him from his senses without success, he teleported to the one closest to him and decapitated it without any problem thanks to his incandescent red blade.
He immediately stored the body in his space ring, and then he teleported again to the one who was closest to him and so on until he had killed them all and put their bodies away in his space ring.